265116577212 has 72 divisors (see below), whose sum is σ = 692039933312. Its totient is φ = 85488566400.

The previous prime is 265116577177. The next prime is 265116577223. The reversal of 265116577212 is 212775611562.

265116577212 is a `hidden beast` number, since 2 + 6 + 51 + 1 + 6 + 577 + 21 + 2 = 666.

265116577212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2943162 + ... + 3031902.

Almost surely, 2^265116577212 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 265116577212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346019966656).

265116577212 is an abundant number, since it is smaller than the sum of its proper divisors (426923356100).

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

265116577212 is a wasteful number, since it uses less digits than its factorization.

265116577212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91459 (or 91454 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The spelling of 265116577212 in words is "two hundred sixty-five billion, one hundred sixteen million, five hundred seventy-seven thousand, two hundred twelve".