166500655615516 has 24 divisors (see below), whose sum is σ = 293517382699296. Its totient is φ = 82638605909760.

The previous prime is 166500655615499. The next prime is 166500655615519. The reversal of 166500655615516 is 615516556005661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166500655615519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3738696 + ... + 18627376.

It is an arithmetic number, because the mean of its divisors is an integer number (12229890945804).

Almost surely, 2^{166500655615516} is an apocalyptic number.

It is an amenable number.

166500655615516 is a deficient number, since it is larger than the sum of its proper divisors (127016727083780).

166500655615516 is a wasteful number, since it uses less digits than its factorization.

166500655615516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14909229 (or 14909227 counting only the distinct ones).

The product of its (nonzero) digits is 24300000, while the sum is 58.

The spelling of 166500655615516 in words is "one hundred sixty-six trillion, five hundred billion, six hundred fifty-five million, six hundred fifteen thousand, five hundred sixteen".