64572217700 has 36 divisors (see below), whose sum is σ = 140414346240. Its totient is φ = 25774945440.

The previous prime is 64572217691. The next prime is 64572217709. The reversal of 64572217700 is 771227546.

64572217700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64572217691) and next prime (64572217709).

It is not an unprimeable number, because it can be changed into a prime (64572217709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 626132 + ... + 721931.

Almost surely, 2^64572217700 is an apocalyptic number.

It is an amenable number.

64572217700 is an abundant number, since it is smaller than the sum of its proper divisors (75842128540).

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

64572217700 is a wasteful number, since it uses less digits than its factorization.

64572217700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348556 (or 1348549 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 41.

The spelling of 64572217700 in words is "sixty-four billion, five hundred seventy-two million, two hundred seventeen thousand, seven hundred".