165615050051 has 8 divisors (see below), whose sum is σ = 182700975600. Its totient is φ = 148867459840.

The previous prime is 165615050033. The next prime is 165615050059. The reversal of 165615050051 is 150050516561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 165615050051 - 2⁶ = 165615049987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165615049993 and 165615050020.

It is not an unprimeable number, because it can be changed into a prime (165615050059) 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, 84582806 + ... + 84584763.

It is an arithmetic number, because the mean of its divisors is an integer number (22837621950).

Almost surely, 2^165615050051 is an apocalyptic number.

165615050051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

165615050051 is a deficient number, since it is larger than the sum of its proper divisors (17085925549).

165615050051 is a wasteful number, since it uses less digits than its factorization.

165615050051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169167669.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 165615050051 in words is "one hundred sixty-five billion, six hundred fifteen million, fifty thousand, fifty-one".