165277264 has 80 divisors (see below), whose sum is σ = 366405120. Its totient is φ = 71751680.

The previous prime is 165277253. The next prime is 165277339. The reversal of 165277264 is 462772561.

It is a congruent number.

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, 180969 + ... + 181879.

It is an arithmetic number, because the mean of its divisors is an integer number (4580064).

Almost surely, 2^165277264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165277264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183202560).

165277264 is an abundant number, since it is smaller than the sum of its proper divisors (201127856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165277264 is a wasteful number, since it uses less digits than its factorization.

165277264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988 (or 982 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 165277264 is about 12856.0205351423. The cubic root of 165277264 is about 548.7877034024.

The spelling of 165277264 in words is "one hundred sixty-five million, two hundred seventy-seven thousand, two hundred sixty-four".