22640068509 has 8 divisors (see below), whose sum is σ = 30188659200. Its totient is φ = 15092428416.

The previous prime is 22640068501. The next prime is 22640068511. The reversal of 22640068509 is 90586004622.

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

It is not a de Polignac number, because 22640068509 - 2³ = 22640068501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22640068501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180084 + ... + 278765.

It is an arithmetic number, because the mean of its divisors is an integer number (3773582400).

Almost surely, 2^22640068509 is an apocalyptic number.

It is an amenable number.

22640068509 is a deficient number, since it is larger than the sum of its proper divisors (7548590691).

22640068509 is a wasteful number, since it uses less digits than its factorization.

22640068509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475299.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 22640068509 in words is "twenty-two billion, six hundred forty million, sixty-eight thousand, five hundred nine".