22094640568 has 96 divisors (see below), whose sum is σ = 56616280560. Its totient is φ = 7946104320.

The previous prime is 22094640559. The next prime is 22094640577. The reversal of 22094640568 is 86504649022.

It is an interprime number because it is at equal distance from previous prime (22094640559) and next prime (22094640577).

It is a super-2 number, since 2×22094640568² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141021 + ... + 253132.

Almost surely, 2^22094640568 is an apocalyptic number.

22094640568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22094640568 is an abundant number, since it is smaller than the sum of its proper divisors (34521639992).

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

22094640568 is a wasteful number, since it uses less digits than its factorization.

22094640568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394197 (or 394186 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 22094640568 in words is "twenty-two billion, ninety-four million, six hundred forty thousand, five hundred sixty-eight".