2659444664 has 32 divisors (see below), whose sum is σ = 5118876000. Its totient is φ = 1294548480.

The previous prime is 2659444651. The next prime is 2659444727. The reversal of 2659444664 is 4664449562.

It is a congruent number.

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, 151412 + ... + 168060.

It is an arithmetic number, because the mean of its divisors is an integer number (159964875).

Almost surely, 2^2659444664 is an apocalyptic number.

It is an amenable number.

2659444664 is a deficient number, since it is larger than the sum of its proper divisors (2459431336).

2659444664 is a wasteful number, since it uses less digits than its factorization.

2659444664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17183 (or 17179 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 50.

The square root of 2659444664 is about 51569.8038002861. The cubic root of 2659444664 is about 1385.4695526339.

The spelling of 2659444664 in words is "two billion, six hundred fifty-nine million, four hundred forty-four thousand, six hundred sixty-four".