156055540636431 has 12 divisors (see below), whose sum is σ = 225415216227240. Its totient is φ = 104036262077040.

The previous prime is 156055540636427. The next prime is 156055540636441. The reversal of 156055540636431 is 134636045550651.

156055540636431 is a `hidden beast` number, since 1 + 5 + 6 + 0 + 5 + 5 + 540 + 6 + 3 + 64 + 31 = 666.

It is not a de Polignac number, because 156055540636431 - 2² = 156055540636427 is a prime.

It is a super-2 number, since 2×156055540636431² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156055540636441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62457840 + ... + 64908341.

It is an arithmetic number, because the mean of its divisors is an integer number (18784601352270).

Almost surely, 2^{156055540636431} is an apocalyptic number.

156055540636431 is a deficient number, since it is larger than the sum of its proper divisors (69359675590809).

156055540636431 is a wasteful number, since it uses less digits than its factorization.

156055540636431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127502326 (or 127502323 counting only the distinct ones).

The product of its (nonzero) digits is 19440000, while the sum is 54.

The spelling of 156055540636431 in words is "one hundred fifty-six trillion, fifty-five billion, five hundred forty million, six hundred thirty-six thousand, four hundred thirty-one".