64622066392 has 16 divisors (see below), whose sum is σ = 130486865040. Its totient is φ = 29825569056.

The previous prime is 64622066389. The next prime is 64622066407. The reversal of 64622066392 is 29366022646.

It is a happy number.

It is a super-2 number, since 2×64622066392² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310682908 + ... + 310683115.

It is an arithmetic number, because the mean of its divisors is an integer number (8155429065).

Almost surely, 2^64622066392 is an apocalyptic number.

It is an amenable number.

64622066392 is an abundant number, since it is smaller than the sum of its proper divisors (65864798648).

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

64622066392 is a wasteful number, since it uses less digits than its factorization.

64622066392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621366042 (or 621366038 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 46.

The spelling of 64622066392 in words is "sixty-four billion, six hundred twenty-two million, sixty-six thousand, three hundred ninety-two".