2156032688 has 10 divisors (see below), whose sum is σ = 4177313364. Its totient is φ = 1078016336.

The previous prime is 2156032663. The next prime is 2156032717. The reversal of 2156032688 is 8862306512.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67376006 + ... + 67376037.

Almost surely, 2^2156032688 is an apocalyptic number.

It is an amenable number.

2156032688 is a deficient number, since it is larger than the sum of its proper divisors (2021280676).

2156032688 is a wasteful number, since it uses less digits than its factorization.

2156032688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134752051 (or 134752045 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 2156032688 is about 46433.0990565997. The cubic root of 2156032688 is about 1291.8689109683.

The spelling of 2156032688 in words is "two billion, one hundred fifty-six million, thirty-two thousand, six hundred eighty-eight".