145522271560 has 16 divisors (see below), whose sum is σ = 327425111100. Its totient is φ = 58208908608.

The previous prime is 145522271407. The next prime is 145522271581. The reversal of 145522271560 is 65172225541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 145263125956 + 259145604 = 381134^2 + 16098^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 3638056789 = 145522271560 / (1 + 4 + 5 + 5 + 2 + 2 + 2 + 7 + 1 + 5 + 6 + 0).

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 3 ways as a sum of consecutive naturals, for example, 1819028355 + ... + 1819028434.

Almost surely, 2^145522271560 is an apocalyptic number.

145522271560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145522271560 is an abundant number, since it is smaller than the sum of its proper divisors (181902839540).

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

145522271560 is a wasteful number, since it uses less digits than its factorization.

145522271560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638056800 (or 3638056796 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 145522271560 in words is "one hundred forty-five billion, five hundred twenty-two million, two hundred seventy-one thousand, five hundred sixty".