2156134103631 has 20 divisors (see below), whose sum is σ = 3229390126600. Its totient is φ = 1433630043216.

The previous prime is 2156134103609. The next prime is 2156134103659. The reversal of 2156134103631 is 1363014316512.

2156134103631 is a `hidden beast` number, since 2 + 1 + 5 + 6 + 1 + 3 + 4 + 10 + 3 + 631 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-2156134103631 is a prime.

It is a super-2 number, since 2×2156134103631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156134103131) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35086636 + ... + 35148033.

It is an arithmetic number, because the mean of its divisors is an integer number (161469506330).

Almost surely, 2^{2156134103631} is an apocalyptic number.

2156134103631 is a deficient number, since it is larger than the sum of its proper divisors (1073256022969).

2156134103631 is an equidigital number, since it uses as much as digits as its factorization.

2156134103631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70235060 (or 70235051 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 2156134103631 in words is "two trillion, one hundred fifty-six billion, one hundred thirty-four million, one hundred three thousand, six hundred thirty-one".