252216511445466 has 32 divisors (see below), whose sum is σ = 563415592780800. Its totient is φ = 83632002046560.

The previous prime is 252216511445461. The next prime is 252216511445489. The reversal of 252216511445466 is 664544115612252.

252216511445466 is a `hidden beast` number, since 2 + 5 + 2 + 2 + 1 + 6 + 51 + 1 + 44 + 546 + 6 = 666.

It is a super-2 number, since 2×252216511445466² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (252216511445461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12226890571 + ... + 12226911198.

It is an arithmetic number, because the mean of its divisors is an integer number (17606737274400).

Almost surely, 2^{252216511445466} is an apocalyptic number.

252216511445466 is an abundant number, since it is smaller than the sum of its proper divisors (311199081335334).

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

252216511445466 is a wasteful number, since it uses less digits than its factorization.

252216511445466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24453801971 (or 24453801965 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 54.

The spelling of 252216511445466 in words is "two hundred fifty-two trillion, two hundred sixteen billion, five hundred eleven million, four hundred forty-five thousand, four hundred sixty-six".