22640017796569 has 4 divisors (see below), whose sum is σ = 22642079927760. Its totient is φ = 22637955665380.

The previous prime is 22640017796531. The next prime is 22640017796611. The reversal of 22640017796569 is 96569771004622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22640017796569 - 2⁷ = 22640017796441 is a prime.

It is a super-2 number, since 2×22640017796569² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22640017796569.

It is not an unprimeable number, because it can be changed into a prime (22640027796569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031049127 + ... + 1031071084.

It is an arithmetic number, because the mean of its divisors is an integer number (5660519981940).

Almost surely, 2^{22640017796569} is an apocalyptic number.

It is an amenable number.

22640017796569 is a deficient number, since it is larger than the sum of its proper divisors (2062131191).

22640017796569 is a wasteful number, since it uses less digits than its factorization.

22640017796569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062131190.

The product of its (nonzero) digits is 68584320, while the sum is 64.

The spelling of 22640017796569 in words is "twenty-two trillion, six hundred forty billion, seventeen million, seven hundred ninety-six thousand, five hundred sixty-nine".