64422664220 has 24 divisors (see below), whose sum is σ = 139952685600. Its totient is φ = 24880476992.

The previous prime is 64422664183. The next prime is 64422664231. The reversal of 64422664220 is 2246622446.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55536200 + ... + 55537359.

It is an arithmetic number, because the mean of its divisors is an integer number (5831361900).

Almost surely, 2^64422664220 is an apocalyptic number.

It is an amenable number.

64422664220 is an abundant number, since it is smaller than the sum of its proper divisors (75530021380).

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

64422664220 is a wasteful number, since it uses less digits than its factorization.

64422664220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111073597 (or 111073595 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 64422664220 in words is "sixty-four billion, four hundred twenty-two million, six hundred sixty-four thousand, two hundred twenty".