252422663680 has 80 divisors (see below), whose sum is σ = 660243103344. Its totient is φ = 91790049280.

The previous prime is 252422663663. The next prime is 252422663687. The reversal of 252422663680 is 86366224252.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×252422663680² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252422663680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252422663687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4453777 + ... + 4510096.

Almost surely, 2^252422663680 is an apocalyptic number.

252422663680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252422663680 is an abundant number, since it is smaller than the sum of its proper divisors (407820439664).

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

252422663680 is an equidigital number, since it uses as much as digits as its factorization.

252422663680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8963907 (or 8963891 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 252422663680 in words is "two hundred fifty-two billion, four hundred twenty-two million, six hundred sixty-three thousand, six hundred eighty".