22646735544 has 32 divisors (see below), whose sum is σ = 57136266000. Its totient is φ = 7479654912.

The previous prime is 22646735497. The next prime is 22646735563. The reversal of 22646735544 is 44553764622.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22646735493 and 22646735502.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4325889 + ... + 4331120.

Almost surely, 2^22646735544 is an apocalyptic number.

22646735544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22646735544 is an abundant number, since it is smaller than the sum of its proper divisors (34489530456).

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

22646735544 is a wasteful number, since it uses less digits than its factorization.

22646735544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8657127 (or 8657123 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 48.

The spelling of 22646735544 in words is "twenty-two billion, six hundred forty-six million, seven hundred thirty-five thousand, five hundred forty-four".