155072056780 has 48 divisors (see below), whose sum is σ = 328721279040. Its totient is φ = 61444355328.

The previous prime is 155072056771. The next prime is 155072056793. The reversal of 155072056780 is 87650270551.

155072056780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 155072056780.

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 15 ways as a sum of consecutive naturals, for example, 13154769 + ... + 13166551.

It is an arithmetic number, because the mean of its divisors is an integer number (6848359980).

Almost surely, 2^155072056780 is an apocalyptic number.

155072056780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155072056780 is an abundant number, since it is smaller than the sum of its proper divisors (173649222260).

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

155072056780 is a wasteful number, since it uses less digits than its factorization.

155072056780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17938 (or 17936 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 46.

The spelling of 155072056780 in words is "one hundred fifty-five billion, seventy-two million, fifty-six thousand, seven hundred eighty".