22775716640 has 24 divisors (see below), whose sum is σ = 53807630940. Its totient is φ = 9110286592.

The previous prime is 22775716591. The next prime is 22775716693. The reversal of 22775716640 is 4661757722.

It can be written as a sum of positive squares in 2 ways, for example, as 22715312656 + 60403984 = 150716^2 + 7772^2 .

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, 71173955 + ... + 71174274.

Almost surely, 2^22775716640 is an apocalyptic number.

22775716640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22775716640 is an abundant number, since it is smaller than the sum of its proper divisors (31031914300).

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

22775716640 is a wasteful number, since it uses less digits than its factorization.

22775716640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142348244 (or 142348236 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 22775716640 in words is "twenty-two billion, seven hundred seventy-five million, seven hundred sixteen thousand, six hundred forty".