2660662688 has 24 divisors (see below), whose sum is σ = 5239352160. Its totient is φ = 1330033600.

The previous prime is 2660662679. The next prime is 2660662717. The reversal of 2660662688 is 8862660662.

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 3 ways as a sum of consecutive naturals, for example, 232853 + ... + 244011.

It is an arithmetic number, because the mean of its divisors is an integer number (218306340).

Almost surely, 2^2660662688 is an apocalyptic number.

It is an amenable number.

2660662688 is a deficient number, since it is larger than the sum of its proper divisors (2578689472).

2660662688 is a wasteful number, since it uses less digits than its factorization.

2660662688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18620 (or 18612 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 50.

The square root of 2660662688 is about 51581.6119174265. The cubic root of 2660662688 is about 1385.6810350817.

The spelling of 2660662688 in words is "two billion, six hundred sixty million, six hundred sixty-two thousand, six hundred eighty-eight".