165926827 has 16 divisors (see below), whose sum is σ = 184187520. Its totient is φ = 148220800.

The previous prime is 165926819. The next prime is 165926843. The reversal of 165926827 is 728629561.

It is a cyclic number.

It is not a de Polignac number, because 165926827 - 2³ = 165926819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165926627) 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, 162324 + ... + 163342.

It is an arithmetic number, because the mean of its divisors is an integer number (11511720).

Almost surely, 2^165926827 is an apocalyptic number.

165926827 is a deficient number, since it is larger than the sum of its proper divisors (18260693).

165926827 is a wasteful number, since it uses less digits than its factorization.

165926827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274.

The product of its digits is 362880, while the sum is 46.

The square root of 165926827 is about 12881.2587506035. The cubic root of 165926827 is about 549.5057013492.

It can be divided in two parts, 165926 and 827, that added together give a triangular number (166753 = T₅₇₇).

The spelling of 165926827 in words is "one hundred sixty-five million, nine hundred twenty-six thousand, eight hundred twenty-seven".