253171133898660 has 36 divisors (see below), whose sum is σ = 767952439493148. Its totient is φ = 67512302372928.

The previous prime is 253171133898653. The next prime is 253171133898667. The reversal of 253171133898660 is 66898331171352.

253171133898660 is a `hidden beast` number, since 2 + 5 + 3 + 1 + 7 + 113 + 389 + 86 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (253171133898653) and next prime (253171133898667).

It can be written as a sum of positive squares in 2 ways, for example, as 65083459074624 + 188087674824036 = 8067432^2 + 13714506^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×253171133898660² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (253171133898667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 703253149539 + ... + 703253149898.

It is an arithmetic number, because the mean of its divisors is an integer number (21332012208143).

Almost surely, 2^{253171133898660} is an apocalyptic number.

253171133898660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253171133898660 is an abundant number, since it is smaller than the sum of its proper divisors (514781305594488).

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

253171133898660 is a wasteful number, since it uses less digits than its factorization.

253171133898660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406506299452 (or 1406506299447 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 253171133898660 in words is "two hundred fifty-three trillion, one hundred seventy-one billion, one hundred thirty-three million, eight hundred ninety-eight thousand, six hundred sixty".