2156432325631 has 8 divisors (see below), whose sum is σ = 2184212726640. Its totient is φ = 2128694764992.

The previous prime is 2156432325601. The next prime is 2156432325637. The reversal of 2156432325631 is 1365232346512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2156432325631 - 2⁵ = 2156432325599 is a prime.

It is a super-2 number, since 2×2156432325631² (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 (2156432325637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10608766 + ... + 10810123.

It is an arithmetic number, because the mean of its divisors is an integer number (273026590830).

Almost surely, 2^{2156432325631} is an apocalyptic number.

2156432325631 is a deficient number, since it is larger than the sum of its proper divisors (27780401009).

2156432325631 is a wasteful number, since it uses less digits than its factorization.

2156432325631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21420185.

The product of its digits is 777600, while the sum is 43.

The spelling of 2156432325631 in words is "two trillion, one hundred fifty-six billion, four hundred thirty-two million, three hundred twenty-five thousand, six hundred thirty-one".