145265174550 has 192 divisors, whose sum is σ = 421908264000. Its totient is φ = 36695393280.

The previous prime is 145265174533. The next prime is 145265174567. The reversal of 145265174550 is 55471562541.

145265174550 is a `hidden beast` number, since 1 + 4 + 5 + 26 + 5 + 1 + 74 + 550 = 666.

It is an interprime number because it is at equal distance from previous prime (145265174533) and next prime (145265174567).

It is a super-2 number, since 2×145265174550² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 145265174496 and 145265174505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2039946 + ... + 2109954.

It is an arithmetic number, because the mean of its divisors is an integer number (2197438875).

Almost surely, 2^145265174550 is an apocalyptic number.

145265174550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145265174550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210954132000).

145265174550 is an abundant number, since it is smaller than the sum of its proper divisors (276643089450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145265174550 is a wasteful number, since it uses less digits than its factorization.

145265174550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70112 (or 70101 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 45.

The spelling of 145265174550 in words is "one hundred forty-five billion, two hundred sixty-five million, one hundred seventy-four thousand, five hundred fifty".