22507752656 has 10 divisors (see below), whose sum is σ = 43608770802. Its totient is φ = 11253876320.

The previous prime is 22507752623. The next prime is 22507752677. The reversal of 22507752656 is 65625770522.

It can be written as a sum of positive squares in only one way, i.e., 16439342656 + 6068410000 = 128216^2 + 77900^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22507752656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703367255 + ... + 703367286.

Almost surely, 2^22507752656 is an apocalyptic number.

It is an amenable number.

22507752656 is a deficient number, since it is larger than the sum of its proper divisors (21101018146).

22507752656 is a wasteful number, since it uses less digits than its factorization.

22507752656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406734549 (or 1406734543 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 47.

The spelling of 22507752656 in words is "twenty-two billion, five hundred seven million, seven hundred fifty-two thousand, six hundred fifty-six".