253162660221 has 48 divisors (see below), whose sum is σ = 382938716160. Its totient is φ = 167127021360.

The previous prime is 253162660211. The next prime is 253162660229. The reversal of 253162660221 is 122066261352.

253162660221 is a `hidden beast` number, since 2 + 5 + 3 + 1 + 6 + 26 + 602 + 21 = 666.

It is not a de Polignac number, because 253162660221 - 2²³ = 253154271613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253162660229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15239706 + ... + 15256308.

It is an arithmetic number, because the mean of its divisors is an integer number (7977889920).

Almost surely, 2^253162660221 is an apocalyptic number.

It is an amenable number.

253162660221 is a deficient number, since it is larger than the sum of its proper divisors (129776055939).

253162660221 is a wasteful number, since it uses less digits than its factorization.

253162660221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17228 (or 17216 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 253162660221 in words is "two hundred fifty-three billion, one hundred sixty-two million, six hundred sixty thousand, two hundred twenty-one".