155479552128 has 96 divisors (see below), whose sum is σ = 452799350640. Its totient is φ = 51202070016.

The previous prime is 155479552127. The next prime is 155479552141. The reversal of 155479552128 is 821255974551.

It is a happy number.

155479552128 is a `hidden beast` number, since 1 + 5 + 5 + 4 + 7 + 95 + 521 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×155479552128² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155479552127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 717426 + ... + 908657.

Almost surely, 2^155479552128 is an apocalyptic number.

155479552128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

155479552128 is an abundant number, since it is smaller than the sum of its proper divisors (297319798512).

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

155479552128 is a wasteful number, since it uses less digits than its factorization.

155479552128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626186 (or 1626171 counting only the distinct ones).

The product of its digits is 5040000, while the sum is 54.

The spelling of 155479552128 in words is "one hundred fifty-five billion, four hundred seventy-nine million, five hundred fifty-two thousand, one hundred twenty-eight".