265165872 has 40 divisors (see below), whose sum is σ = 685598976. Its totient is φ = 88312896.

The previous prime is 265165867. The next prime is 265165889. The reversal of 265165872 is 278561562.

265165872 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98853 + ... + 101499.

Almost surely, 2^265165872 is an apocalyptic number.

It is an amenable number.

265165872 is an abundant number, since it is smaller than the sum of its proper divisors (420433104).

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

265165872 is a wasteful number, since it uses less digits than its factorization.

265165872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745 (or 4739 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 265165872 is about 16283.9145170932. The cubic root of 265165872 is about 642.4498162644.

The spelling of 265165872 in words is "two hundred sixty-five million, one hundred sixty-five thousand, eight hundred seventy-two".