6660751708 has 72 divisors (see below), whose sum is σ = 13428056880. Its totient is φ = 2879585280.

The previous prime is 6660751633. The next prime is 6660751709. The reversal of 6660751708 is 8071570666.

It is a super-2 number, since 2×6660751708² = 88731226631249834528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660751709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2630403 + ... + 2632933.

It is an arithmetic number, because the mean of its divisors is an integer number (186500790).

Almost surely, 2^6660751708 is an apocalyptic number.

6660751708 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6660751708 is an abundant number, since it is smaller than the sum of its proper divisors (6767305172).

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

6660751708 is a wasteful number, since it uses less digits than its factorization.

6660751708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807 (or 2792 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 6660751708 is about 81613.4284784067. The cubic root of 6660751708 is about 1881.5152741405.

The spelling of 6660751708 in words is "six billion, six hundred sixty million, seven hundred fifty-one thousand, seven hundred eight".