156535400331 has 24 divisors (see below), whose sum is σ = 227826159600. Its totient is φ = 103563795456.

The previous prime is 156535400327. The next prime is 156535400381. The reversal of 156535400331 is 133004535651.

156535400331 is a `hidden beast` number, since 1 + 56 + 535 + 40 + 0 + 3 + 31 = 666.

156535400331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 156535400331 - 2² = 156535400327 is a prime.

It is a super-2 number, since 2×156535400331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (156535400381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4474395 + ... + 4509243.

It is an arithmetic number, because the mean of its divisors is an integer number (9492756650).

Almost surely, 2^156535400331 is an apocalyptic number.

156535400331 is a deficient number, since it is larger than the sum of its proper divisors (71290759269).

156535400331 is a wasteful number, since it uses less digits than its factorization.

156535400331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38635 (or 38632 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

Adding to 156535400331 its reverse (133004535651), we get a palindrome (289539935982).

The spelling of 156535400331 in words is "one hundred fifty-six billion, five hundred thirty-five million, four hundred thousand, three hundred thirty-one".