22640075647 has 8 divisors (see below), whose sum is σ = 26505454752. Its totient is φ = 18932467200.

The previous prime is 22640075629. The next prime is 22640075657. The reversal of 22640075647 is 74657004622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22640075647 - 2¹⁹ = 22639551359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22640075657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39442354 + ... + 39442927.

It is an arithmetic number, because the mean of its divisors is an integer number (3313181844).

Almost surely, 2^22640075647 is an apocalyptic number.

22640075647 is a deficient number, since it is larger than the sum of its proper divisors (3865379105).

22640075647 is an equidigital number, since it uses as much as digits as its factorization.

22640075647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78885329.

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 22640075647 in words is "twenty-two billion, six hundred forty million, seventy-five thousand, six hundred forty-seven".