253616133654 has 48 divisors (see below), whose sum is σ = 591813894672. Its totient is φ = 78030074304.

The previous prime is 253616133653. The next prime is 253616133721. The reversal of 253616133654 is 456331616352.

253616133654 is a `hidden beast` number, since 2 + 536 + 1 + 61 + 3 + 3 + 6 + 54 = 666.

It is a super-2 number, since 2×253616133654² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253616133653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4143477 + ... + 4204239.

It is an arithmetic number, because the mean of its divisors is an integer number (12329456139).

Almost surely, 2^253616133654 is an apocalyptic number.

253616133654 is an abundant number, since it is smaller than the sum of its proper divisors (338197761018).

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

253616133654 is a wasteful number, since it uses less digits than its factorization.

253616133654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78621 (or 78618 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The spelling of 253616133654 in words is "two hundred fifty-three billion, six hundred sixteen million, one hundred thirty-three thousand, six hundred fifty-four".