165050506616515 has 16 divisors (see below), whose sum is σ = 213296618501568. Its totient is φ = 121883120078976.

The previous prime is 165050506616509. The next prime is 165050506616551. The reversal of 165050506616515 is 515616605050561.

It is a cyclic number.

It is not a de Polignac number, because 165050506616515 - 2⁵ = 165050506616483 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22121922 + ... + 28626568.

It is an arithmetic number, because the mean of its divisors is an integer number (13331038656348).

Almost surely, 2^{165050506616515} is an apocalyptic number.

165050506616515 is a deficient number, since it is larger than the sum of its proper divisors (48246111885053).

165050506616515 is a wasteful number, since it uses less digits than its factorization.

165050506616515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6895038.

The product of its (nonzero) digits is 4050000, while the sum is 52.

The spelling of 165050506616515 in words is "one hundred sixty-five trillion, fifty billion, five hundred six million, six hundred sixteen thousand, five hundred fifteen".