156557578355226 has 48 divisors (see below), whose sum is σ = 339363610080768. Its totient is φ = 52161934236000.

The previous prime is 156557578355207. The next prime is 156557578355231. The reversal of 156557578355226 is 622553875755651.

156557578355226 is a `hidden beast` number, since 1 + 5 + 65 + 5 + 7 + 5 + 7 + 8 + 3 + 552 + 2 + 6 = 666.

156557578355226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×156557578355226² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2279255455 + ... + 2279324141.

It is an arithmetic number, because the mean of its divisors is an integer number (7070075210016).

Almost surely, 2^{156557578355226} is an apocalyptic number.

156557578355226 is an abundant number, since it is smaller than the sum of its proper divisors (182806031725542).

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

156557578355226 is a wasteful number, since it uses less digits than its factorization.

156557578355226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124907 (or 124904 counting only the distinct ones).

The product of its digits is 2646000000, while the sum is 72.

The spelling of 156557578355226 in words is "one hundred fifty-six trillion, five hundred fifty-seven billion, five hundred seventy-eight million, three hundred fifty-five thousand, two hundred twenty-six".