2156432712 has 64 divisors (see below), whose sum is σ = 6429127680. Its totient is φ = 589334592.

The previous prime is 2156432687. The next prime is 2156432737. The reversal of 2156432712 is 2172346512.

It is an interprime number because it is at equal distance from previous prime (2156432687) and next prime (2156432737).

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, 275178 + ... + 282905.

It is an arithmetic number, because the mean of its divisors is an integer number (100455120).

Almost surely, 2^2156432712 is an apocalyptic number.

It is an amenable number.

2156432712 is an abundant number, since it is smaller than the sum of its proper divisors (4272694968).

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

2156432712 is a wasteful number, since it uses less digits than its factorization.

2156432712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558122 (or 558118 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 2156432712 is about 46437.4063875234. The cubic root of 2156432712 is about 1291.9488025542.

The spelling of 2156432712 in words is "two billion, one hundred fifty-six million, four hundred thirty-two thousand, seven hundred twelve".