156534131000 has 64 divisors (see below), whose sum is σ = 394466042880. Its totient is φ = 57797212800.

The previous prime is 156534130999. The next prime is 156534131011. The reversal of 156534131000 is 131435651.

It is a super-2 number, since 2×156534131000² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6007544 + ... + 6033543.

It is an arithmetic number, because the mean of its divisors is an integer number (6163531920).

Almost surely, 2^156534131000 is an apocalyptic number.

156534131000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156534131000 is an abundant number, since it is smaller than the sum of its proper divisors (237931911880).

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

156534131000 is a wasteful number, since it uses less digits than its factorization.

156534131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12041121 (or 12041107 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 156534131000 its reverse (131435651), we get a palindrome (156665566651).

The spelling of 156534131000 in words is "one hundred fifty-six billion, five hundred thirty-four million, one hundred thirty-one thousand".