2660557632 has 28 divisors (see below), whose sum is σ = 7039392576. Its totient is φ = 886852480.

The previous prime is 2660557621. The next prime is 2660557633. The reversal of 2660557632 is 2367550662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660557633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6928344 + ... + 6928727.

Almost surely, 2^2660557632 is an apocalyptic number.

It is an amenable number.

2660557632 is an abundant number, since it is smaller than the sum of its proper divisors (4378834944).

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

2660557632 is a wasteful number, since it uses less digits than its factorization.

2660557632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13857086 (or 13857076 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 42.

The square root of 2660557632 is about 51580.5935599815. The cubic root of 2660557632 is about 1385.6627970160.

The spelling of 2660557632 in words is "two billion, six hundred sixty million, five hundred fifty-seven thousand, six hundred thirty-two".