155923309960 has 64 divisors (see below), whose sum is σ = 392055552000. Its totient is φ = 55316467200.

The previous prime is 155923309939. The next prime is 155923309991. The reversal of 155923309960 is 69903329551.

It is a junction number, because it is equal to n+sod(n) for n = 155923309898 and 155923309907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4303560 + ... + 4339639.

It is an arithmetic number, because the mean of its divisors is an integer number (6125868000).

Almost surely, 2^155923309960 is an apocalyptic number.

155923309960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155923309960 is an abundant number, since it is smaller than the sum of its proper divisors (236132242040).

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

155923309960 is a wasteful number, since it uses less digits than its factorization.

155923309960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8643262 (or 8643258 counting only the distinct ones).

The product of its (nonzero) digits is 1968300, while the sum is 52.

The spelling of 155923309960 in words is "one hundred fifty-five billion, nine hundred twenty-three million, three hundred nine thousand, nine hundred sixty".