2156264344 has 32 divisors (see below), whose sum is σ = 4365270000. Its totient is φ = 992621952.

The previous prime is 2156264317. The next prime is 2156264351. The reversal of 2156264344 is 4434626512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13807 + ... + 67105.

Almost surely, 2^2156264344 is an apocalyptic number.

It is an amenable number.

2156264344 is an abundant number, since it is smaller than the sum of its proper divisors (2209005656).

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

2156264344 is a wasteful number, since it uses less digits than its factorization.

2156264344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53707 (or 53703 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The square root of 2156264344 is about 46435.5935032600. The cubic root of 2156264344 is about 1291.9151778096.

The spelling of 2156264344 in words is "two billion, one hundred fifty-six million, two hundred sixty-four thousand, three hundred forty-four".