155030428872 has 128 divisors (see below), whose sum is σ = 475589635200. Its totient is φ = 46978859520.

The previous prime is 155030428849. The next prime is 155030428907. The reversal of 155030428872 is 278824030551.

155030428872 is a `hidden beast` number, since 1 + 550 + 3 + 0 + 4 + 28 + 8 + 72 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210313 + ... + 595224.

It is an arithmetic number, because the mean of its divisors is an integer number (3715544025).

Almost surely, 2^155030428872 is an apocalyptic number.

155030428872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155030428872 is an abundant number, since it is smaller than the sum of its proper divisors (320559206328).

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

155030428872 is an equidigital number, since it uses as much as digits as its factorization.

155030428872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805575 (or 805553 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 155030428872 in words is "one hundred fifty-five billion, thirty million, four hundred twenty-eight thousand, eight hundred seventy-two".