22064714656639 has 16 divisors (see below), whose sum is σ = 23394607040448. Its totient is φ = 20738380211712.

The previous prime is 22064714656627. The next prime is 22064714656643. The reversal of 22064714656639 is 93665641746022.

It is not a de Polignac number, because 22064714656639 - 2¹³ = 22064714648447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22064714656679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125606302 + ... + 125781844.

It is an arithmetic number, because the mean of its divisors is an integer number (1462162940028).

Almost surely, 2^{22064714656639} is an apocalyptic number.

22064714656639 is a deficient number, since it is larger than the sum of its proper divisors (1329892383809).

22064714656639 is a wasteful number, since it uses less digits than its factorization.

22064714656639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185634.

The product of its (nonzero) digits is 78382080, while the sum is 61.

The spelling of 22064714656639 in words is "twenty-two trillion, sixty-four billion, seven hundred fourteen million, six hundred fifty-six thousand, six hundred thirty-nine".