64390065022 has 16 divisors (see below), whose sum is σ = 97753006080. Its totient is φ = 31807851768.

The previous prime is 64390065007. The next prime is 64390065041. The reversal of 64390065022 is 22056009346.

It is a congruent number.

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, 469638 + ... + 591049.

It is an arithmetic number, because the mean of its divisors is an integer number (6109562880).

Almost surely, 2^64390065022 is an apocalyptic number.

64390065022 is a deficient number, since it is larger than the sum of its proper divisors (33362941058).

64390065022 is a wasteful number, since it uses less digits than its factorization.

64390065022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061055.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 64390065022 in words is "sixty-four billion, three hundred ninety million, sixty-five thousand, twenty-two".