252144451320 has 64 divisors (see below), whose sum is σ = 772527697920. Its totient is φ = 65807912064.

The previous prime is 252144451319. The next prime is 252144451357. The reversal of 252144451320 is 23154441252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22347592 + ... + 22358871.

It is an arithmetic number, because the mean of its divisors is an integer number (12070745280).

Almost surely, 2^252144451320 is an apocalyptic number.

252144451320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252144451320 is an abundant number, since it is smaller than the sum of its proper divisors (520383246600).

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

252144451320 is a wasteful number, since it uses less digits than its factorization.

252144451320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44706524 (or 44706520 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 252144451320 its reverse (23154441252), we get a palindrome (275298892572).

The spelling of 252144451320 in words is "two hundred fifty-two billion, one hundred forty-four million, four hundred fifty-one thousand, three hundred twenty".