165615327 has 16 divisors (see below), whose sum is σ = 247152480. Its totient is φ = 109601856.

The previous prime is 165615323. The next prime is 165615337. The reversal of 165615327 is 723516561.

165615327 is a `hidden beast` number, since 1 + 6 + 5 + 615 + 32 + 7 = 666.

It is not a de Polignac number, because 165615327 - 2² = 165615323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165615291 and 165615300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165615323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18688 + ... + 26085.

It is an arithmetic number, because the mean of its divisors is an integer number (15447030).

Almost surely, 2^165615327 is an apocalyptic number.

165615327 is a deficient number, since it is larger than the sum of its proper divisors (81537153).

165615327 is a wasteful number, since it uses less digits than its factorization.

165615327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44919 (or 44913 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 165615327 is about 12869.1618608206. The cubic root of 165615327 is about 549.1616174419.

The spelling of 165615327 in words is "one hundred sixty-five million, six hundred fifteen thousand, three hundred twenty-seven".