2940815664 has 60 divisors (see below), whose sum is σ = 8385507936. Its totient is φ = 961773696.

The previous prime is 2940815659. The next prime is 2940815671. The reversal of 2940815664 is 4665180492.

2940815664 is a `hidden beast` number, since 2 + 9 + 4 + 0 + 81 + 566 + 4 = 666.

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, 185032 + ... + 200295.

Almost surely, 2^2940815664 is an apocalyptic number.

2940815664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2940815664 is an abundant number, since it is smaller than the sum of its proper divisors (5444692272).

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

2940815664 is a wasteful number, since it uses less digits than its factorization.

2940815664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385394 (or 385385 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 2940815664 is about 54229.2878802589. The cubic root of 2940815664 is about 1432.7022215727.

The spelling of 2940815664 in words is "two billion, nine hundred forty million, eight hundred fifteen thousand, six hundred sixty-four".