165350515 has 16 divisors (see below), whose sum is σ = 217922400. Its totient is φ = 119441920.

The previous prime is 165350503. The next prime is 165350531. The reversal of 165350515 is 515053561.

It is not a de Polignac number, because 165350515 - 2¹⁷ = 165219443 is a prime.

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, 1894 + ... + 18283.

It is an arithmetic number, because the mean of its divisors is an integer number (13620150).

Almost surely, 2^165350515 is an apocalyptic number.

165350515 is a deficient number, since it is larger than the sum of its proper divisors (52571885).

165350515 is a wasteful number, since it uses less digits than its factorization.

165350515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20342.

The product of its (nonzero) digits is 11250, while the sum is 31.

The square root of 165350515 is about 12858.8691182390. The cubic root of 165350515 is about 548.8687657937.

The spelling of 165350515 in words is "one hundred sixty-five million, three hundred fifty thousand, five hundred fifteen".