65400008556 has 24 divisors (see below), whose sum is σ = 153254962224. Its totient is φ = 21706439680.

The previous prime is 65400008549. The next prime is 65400008567. The reversal of 65400008556 is 65580000456.

It is a super-2 number, since 2×65400008556² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11692485 + ... + 11698076.

It is an arithmetic number, because the mean of its divisors is an integer number (6385623426).

Almost surely, 2^65400008556 is an apocalyptic number.

It is an amenable number.

65400008556 is an abundant number, since it is smaller than the sum of its proper divisors (87854953668).

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

65400008556 is a wasteful number, since it uses less digits than its factorization.

65400008556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23390801 (or 23390799 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 65400008556 in words is "sixty-five billion, four hundred million, eight thousand, five hundred fifty-six".