2664688018 has 16 divisors (see below), whose sum is σ = 4368674304. Its totient is φ = 1213519680.

The previous prime is 2664687989. The next prime is 2664688043. The reversal of 2664688018 is 8108864662.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1263030 + ... + 1265137.

It is an arithmetic number, because the mean of its divisors is an integer number (273042144).

Almost surely, 2^2664688018 is an apocalyptic number.

2664688018 is a deficient number, since it is larger than the sum of its proper divisors (1703986286).

2664688018 is a wasteful number, since it uses less digits than its factorization.

2664688018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528217.

The product of its (nonzero) digits is 884736, while the sum is 49.

The square root of 2664688018 is about 51620.6162109675. The cubic root of 2664688018 is about 1386.3794842465.

The spelling of 2664688018 in words is "two billion, six hundred sixty-four million, six hundred eighty-eight thousand, eighteen".