6516516166666 has 32 divisors (see below), whose sum is σ = 10687793852736. Its totient is φ = 2955275520000.

The previous prime is 6516516166663. The next prime is 6516516166703. The reversal of 6516516166666 is 6666616156156.

It is not an unprimeable number, because it can be changed into a prime (6516516166661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97339881 + ... + 97406803.

It is an arithmetic number, because the mean of its divisors is an integer number (333993557898).

Almost surely, 2^{6516516166666} is an apocalyptic number.

6516516166666 is a deficient number, since it is larger than the sum of its proper divisors (4171277686070).

6516516166666 is a wasteful number, since it uses less digits than its factorization.

6516516166666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76998.

The product of its digits is 41990400, while the sum is 61.

The spelling of 6516516166666 in words is "six trillion, five hundred sixteen billion, five hundred sixteen million, one hundred sixty-six thousand, six hundred sixty-six".