64321116900 has 72 divisors (see below), whose sum is σ = 194193862464. Its totient is φ = 16406544000.

The previous prime is 64321116883. The next prime is 64321116911. The reversal of 64321116900 is 961112346.

It is a super-2 number, since 2×64321116900² (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 23 ways as a sum of consecutive naturals, for example, 4654051 + ... + 4667850.

Almost surely, 2^64321116900 is an apocalyptic number.

64321116900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64321116900 is an abundant number, since it is smaller than the sum of its proper divisors (129872745564).

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

64321116900 is a wasteful number, since it uses less digits than its factorization.

64321116900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9321941 (or 9321934 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 64321116900 in words is "sixty-four billion, three hundred twenty-one million, one hundred sixteen thousand, nine hundred".