2156074560 has 84 divisors (see below), whose sum is σ = 7416008028. Its totient is φ = 574952448.

The previous prime is 2156074559. The next prime is 2156074597. The reversal of 2156074560 is 654706512.

It is a happy number.

2156074560 is a `hidden beast` number, since 2 + 1 + 5 + 607 + 45 + 6 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1417974336 + 738100224 = 37656^2 + 27168^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 371439 + ... + 377198.

Almost surely, 2^2156074560 is an apocalyptic number.

2156074560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2156074560 is an abundant number, since it is smaller than the sum of its proper divisors (5259933468).

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

2156074560 is a wasteful number, since it uses less digits than its factorization.

2156074560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748660 (or 748647 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 2156074560 is about 46433.5499396719. The cubic root of 2156074560 is about 1291.8772739808.

The spelling of 2156074560 in words is "two billion, one hundred fifty-six million, seventy-four thousand, five hundred sixty".