6660615166500 has 96 divisors (see below), whose sum is σ = 19629395001216. Its totient is φ = 1754764444800.

The previous prime is 6660615166483. The next prime is 6660615166589. The reversal of 6660615166500 is 56615160666.

It is a self number, because there is not a number n which added to its sum of digits gives 6660615166500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26624959 + ... + 26873958.

It is an arithmetic number, because the mean of its divisors is an integer number (204472864596).

Almost surely, 2^{6660615166500} is an apocalyptic number.

6660615166500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6660615166500 is an abundant number, since it is smaller than the sum of its proper divisors (12968779834716).

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

6660615166500 is a wasteful number, since it uses less digits than its factorization.

6660615166500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53499022 (or 53499010 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 6660615166500 in words is "six trillion, six hundred sixty billion, six hundred fifteen million, one hundred sixty-six thousand, five hundred".