165064155 has 32 divisors (see below), whose sum is σ = 271918080. Its totient is φ = 85451520.

The previous prime is 165064147. The next prime is 165064157. The reversal of 165064155 is 551460561.

It is not a de Polignac number, because 165064155 - 2³ = 165064147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165064157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146424 + ... + 147546.

It is an arithmetic number, because the mean of its divisors is an integer number (8497440).

Almost surely, 2^165064155 is an apocalyptic number.

165064155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165064155 is a deficient number, since it is larger than the sum of its proper divisors (106853925).

165064155 is a wasteful number, since it uses less digits than its factorization.

165064155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 165064155 is about 12847.7295659583. The cubic root of 165064155 is about 548.5517324491.

The spelling of 165064155 in words is "one hundred sixty-five million, sixty-four thousand, one hundred fifty-five".