166015231552516 has 24 divisors (see below), whose sum is σ = 298401848002496. Its totient is φ = 80757908379360.

The previous prime is 166015231552477. The next prime is 166015231552661. The reversal of 166015231552516 is 615255132510661.

It is a super-2 number, since 2×166015231552516² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166015231552516.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41543880 + ... + 45364351.

Almost surely, 2^{166015231552516} is an apocalyptic number.

It is an amenable number.

166015231552516 is a deficient number, since it is larger than the sum of its proper divisors (132386616449980).

166015231552516 is a wasteful number, since it uses less digits than its factorization.

166015231552516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86921179 (or 86921177 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 49.

The spelling of 166015231552516 in words is "one hundred sixty-six trillion, fifteen billion, two hundred thirty-one million, five hundred fifty-two thousand, five hundred sixteen".