22366556840 has 16 divisors (see below), whose sum is σ = 50324752980. Its totient is φ = 8946622720.

The previous prime is 22366556833. The next prime is 22366556851. The reversal of 22366556840 is 4865566322.

It can be written as a sum of positive squares in 2 ways, for example, as 22237370884 + 129185956 = 149122^2 + 11366^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279581921 + ... + 279582000.

Almost surely, 2^22366556840 is an apocalyptic number.

22366556840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22366556840 is an abundant number, since it is smaller than the sum of its proper divisors (27958196140).

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

22366556840 is a wasteful number, since it uses less digits than its factorization.

22366556840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559163932 (or 559163928 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 22366556840 in words is "twenty-two billion, three hundred sixty-six million, five hundred fifty-six thousand, eight hundred forty".