2616640056 has 48 divisors (see below), whose sum is σ = 7090357560. Its totient is φ = 871767360.

The previous prime is 2616640003. The next prime is 2616640063. The reversal of 2616640056 is 6500466162.

It is a happy number.

2616640056 is a `hidden beast` number, since 2 + 6 + 1 + 6 + 640 + 0 + 5 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2616640056.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151731 + ... + 168093.

Almost surely, 2^2616640056 is an apocalyptic number.

It is an amenable number.

2616640056 is an abundant number, since it is smaller than the sum of its proper divisors (4473717504).

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

2616640056 is a wasteful number, since it uses less digits than its factorization.

2616640056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18596 (or 18589 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 2616640056 is about 51153.1040700366. The cubic root of 2616640056 is about 1377.9961212196.

The spelling of 2616640056 in words is "two billion, six hundred sixteen million, six hundred forty thousand, fifty-six".