155792980 has 48 divisors (see below), whose sum is σ = 385975296. Its totient is φ = 51690240.

The previous prime is 155792971. The next prime is 155792993. The reversal of 155792980 is 89297551.

It is a self number, because there is not a number n which added to its sum of digits gives 155792980.

It is a congruent number.

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, 13609 + ... + 22288.

It is an arithmetic number, because the mean of its divisors is an integer number (8041152).

Almost surely, 2^155792980 is an apocalyptic number.

155792980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155792980 is an abundant number, since it is smaller than the sum of its proper divisors (230182316).

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

155792980 is a wasteful number, since it uses less digits than its factorization.

155792980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35944 (or 35942 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 46.

The square root of 155792980 is about 12481.7058129087. The cubic root of 155792980 is about 538.0830291556.

The spelling of 155792980 in words is "one hundred fifty-five million, seven hundred ninety-two thousand, nine hundred eighty".