253412165772 has 18 divisors (see below), whose sum is σ = 640569641348. Its totient is φ = 84470721912.

The previous prime is 253412165753. The next prime is 253412165827. The reversal of 253412165772 is 277561214352.

253412165772 is a `hidden beast` number, since 2 + 5 + 3 + 412 + 165 + 7 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×253412165772² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3519613378 + ... + 3519613449.

Almost surely, 2^253412165772 is an apocalyptic number.

It is an amenable number.

253412165772 is an abundant number, since it is smaller than the sum of its proper divisors (387157475576).

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

253412165772 is a wasteful number, since it uses less digits than its factorization.

253412165772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7039226837 (or 7039226832 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The spelling of 253412165772 in words is "two hundred fifty-three billion, four hundred twelve million, one hundred sixty-five thousand, seven hundred seventy-two".