145023033555 has 128 divisors (see below), whose sum is σ = 271724544000. Its totient is φ = 73245490560.

The previous prime is 145023033523. The next prime is 145023033557. The reversal of 145023033555 is 555330320541.

145023033555 is a `hidden beast` number, since 1 + 4 + 50 + 23 + 0 + 33 + 555 = 666.

It is not a de Polignac number, because 145023033555 - 2⁵ = 145023033523 is a prime.

It is a super-2 number, since 2×145023033555² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145023033557) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 172851826 + ... + 172852664.

It is an arithmetic number, because the mean of its divisors is an integer number (2122848000).

Almost surely, 2^145023033555 is an apocalyptic number.

145023033555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145023033555 is a deficient number, since it is larger than the sum of its proper divisors (126701510445).

145023033555 is a wasteful number, since it uses less digits than its factorization.

145023033555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366 (or 1360 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 145023033555 in words is "one hundred forty-five billion, twenty-three million, thirty-three thousand, five hundred fifty-five".