165216113079986 has 32 divisors (see below), whose sum is σ = 262549250062848. Its totient is φ = 77705157080320.

The previous prime is 165216113079971. The next prime is 165216113079989. The reversal of 165216113079986 is 689970311612561.

It is not an unprimeable number, because it can be changed into a prime (165216113079989) 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, 589447871 + ... + 589728093.

It is an arithmetic number, because the mean of its divisors is an integer number (8204664064464).

Almost surely, 2^{165216113079986} is an apocalyptic number.

165216113079986 is a deficient number, since it is larger than the sum of its proper divisors (97333136982862).

165216113079986 is a wasteful number, since it uses less digits than its factorization.

165216113079986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289906.

The product of its (nonzero) digits is 29393280, while the sum is 65.

The spelling of 165216113079986 in words is "one hundred sixty-five trillion, two hundred sixteen billion, one hundred thirteen million, seventy-nine thousand, nine hundred eighty-six".