6516661660170 has 64 divisors (see below), whose sum is σ = 15820729488000. Its totient is φ = 1717706428416.

The previous prime is 6516661660151. The next prime is 6516661660241. The reversal of 6516661660170 is 710661666156.

It is a happy number.

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, 8076141 + ... + 8846319.

It is an arithmetic number, because the mean of its divisors is an integer number (247198898250).

Almost surely, 2^{6516661660170} is an apocalyptic number.

6516661660170 is an abundant number, since it is smaller than the sum of its proper divisors (9304067827830).

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

6516661660170 is a wasteful number, since it uses less digits than its factorization.

6516661660170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773447.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 6516661660170 in words is "six trillion, five hundred sixteen billion, six hundred sixty-one million, six hundred sixty thousand, one hundred seventy".