253422665708212 has 192 divisors, whose sum is σ = 618384485859840. Its totient is φ = 87655809024000.

The previous prime is 253422665708161. The next prime is 253422665708213. The reversal of 253422665708212 is 212807566224352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253422665708213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25595712 + ... + 34087912.

It is an arithmetic number, because the mean of its divisors is an integer number (3220752530520).

Almost surely, 2^{253422665708212} is an apocalyptic number.

253422665708212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253422665708212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309192242929920).

253422665708212 is an abundant number, since it is smaller than the sum of its proper divisors (364961820151628).

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

253422665708212 is a wasteful number, since it uses less digits than its factorization.

253422665708212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8492522 (or 8492520 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 55.

The spelling of 253422665708212 in words is "two hundred fifty-three trillion, four hundred twenty-two billion, six hundred sixty-five million, seven hundred eight thousand, two hundred twelve".