6659739264 has 64 divisors (see below), whose sum is σ = 17698574880. Its totient is φ = 2218828800.

The previous prime is 6659739257. The next prime is 6659739271. The reversal of 6659739264 is 4629379566.

It is an interprime number because it is at equal distance from previous prime (6659739257) and next prime (6659739271).

It is a tau number, because it is divible by the number of its divisors (64).

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, 1326519 + ... + 1331529.

Almost surely, 2^6659739264 is an apocalyptic number.

6659739264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6659739264 is an abundant number, since it is smaller than the sum of its proper divisors (11038835616).

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

6659739264 is a wasteful number, since it uses less digits than its factorization.

6659739264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8489 (or 8477 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 57.

The square root of 6659739264 is about 81607.2255624464. The cubic root of 6659739264 is about 1881.4199382856.

The spelling of 6659739264 in words is "six billion, six hundred fifty-nine million, seven hundred thirty-nine thousand, two hundred sixty-four".