265165116 has 48 divisors (see below), whose sum is σ = 666247680. Its totient is φ = 81775360.

The previous prime is 265165073. The next prime is 265165129. The reversal of 265165116 is 611561562.

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, 1021 + ... + 23051.

It is an arithmetic number, because the mean of its divisors is an integer number (13880160).

Almost surely, 2^265165116 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 265165116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333123840).

265165116 is an abundant number, since it is smaller than the sum of its proper divisors (401082564).

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

265165116 is a wasteful number, since it uses less digits than its factorization.

265165116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22114 (or 22112 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 265165116 is about 16283.8913039851. The cubic root of 265165116 is about 642.4492057126.

The spelling of 265165116 in words is "two hundred sixty-five million, one hundred sixty-five thousand, one hundred sixteen".