252116623620 has 72 divisors (see below), whose sum is σ = 805003967040. Its totient is φ = 63692619840.

The previous prime is 252116623573. The next prime is 252116623621. The reversal of 252116623620 is 26326611252.

252116623620 is a `hidden beast` number, since 2 + 5 + 2 + 1 + 1 + 6 + 6 + 23 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (252116623621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36855736 + ... + 36862575.

Almost surely, 2^252116623620 is an apocalyptic number.

252116623620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252116623620 is an abundant number, since it is smaller than the sum of its proper divisors (552887343420).

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

252116623620 is a wasteful number, since it uses less digits than its factorization.

252116623620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73718345 (or 73718340 counting only the distinct ones).

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

The spelling of 252116623620 in words is "two hundred fifty-two billion, one hundred sixteen million, six hundred twenty-three thousand, six hundred twenty".