22700656728 has 32 divisors (see below), whose sum is σ = 63057380400. Its totient is φ = 7566885504.

The previous prime is 22700656723. The next prime is 22700656763. The reversal of 22700656728 is 82765600722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22700656723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52547601 + ... + 52548032.

Almost surely, 2^22700656728 is an apocalyptic number.

It is an amenable number.

22700656728 is an abundant number, since it is smaller than the sum of its proper divisors (40356723672).

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

22700656728 is a wasteful number, since it uses less digits than its factorization.

22700656728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105095648 (or 105095638 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 22700656728 in words is "twenty-two billion, seven hundred million, six hundred fifty-six thousand, seven hundred twenty-eight".