64246022664 has 32 divisors (see below), whose sum is σ = 165796189440. Its totient is φ = 20724523200.

The previous prime is 64246022657. The next prime is 64246022677. The reversal of 64246022664 is 46622064246.

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, 43175347 + ... + 43176834.

It is an arithmetic number, because the mean of its divisors is an integer number (5181130920).

Almost surely, 2^64246022664 is an apocalyptic number.

It is an amenable number.

64246022664 is an abundant number, since it is smaller than the sum of its proper divisors (101550166776).

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

64246022664 is a wasteful number, since it uses less digits than its factorization.

64246022664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86352221 (or 86352217 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 64246022664 in words is "sixty-four billion, two hundred forty-six million, twenty-two thousand, six hundred sixty-four".