22756646536 has 16 divisors (see below), whose sum is σ = 45950921100. Its totient is φ = 10503067584.

The previous prime is 22756646513. The next prime is 22756646551. The reversal of 22756646536 is 63564665722.

It can be written as a sum of positive squares in 2 ways, for example, as 16080776100 + 6675870436 = 126810^2 + 81706^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109406851 + ... + 109407058.

Almost surely, 2^22756646536 is an apocalyptic number.

22756646536 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22756646536 is an abundant number, since it is smaller than the sum of its proper divisors (23194274564).

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

22756646536 is a wasteful number, since it uses less digits than its factorization.

22756646536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218813928 (or 218813924 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 52.

The spelling of 22756646536 in words is "twenty-two billion, seven hundred fifty-six million, six hundred forty-six thousand, five hundred thirty-six".