23222540646 has 16 divisors (see below), whose sum is σ = 51605646000. Its totient is φ = 7740846864.

The previous prime is 23222540633. The next prime is 23222540687. The reversal of 23222540646 is 64604522232.

23222540646 is a `hidden beast` number, since 2 + 3 + 2 + 2 + 2 + 5 + 4 + 0 + 646 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 23222540646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215023471 + ... + 215023578.

It is an arithmetic number, because the mean of its divisors is an integer number (3225352875).

Almost surely, 2^23222540646 is an apocalyptic number.

23222540646 is an abundant number, since it is smaller than the sum of its proper divisors (28383105354).

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

23222540646 is a wasteful number, since it uses less digits than its factorization.

23222540646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430047060 (or 430047054 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The spelling of 23222540646 in words is "twenty-three billion, two hundred twenty-two million, five hundred forty thousand, six hundred forty-six".