22661642586 has 32 divisors (see below), whose sum is σ = 50376489408. Its totient is φ = 6737594240.

The previous prime is 22661642573. The next prime is 22661642593. The reversal of 22661642586 is 68524616622.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3235731 + ... + 3242726.

It is an arithmetic number, because the mean of its divisors is an integer number (1574265294).

Almost surely, 2^22661642586 is an apocalyptic number.

22661642586 is an abundant number, since it is smaller than the sum of its proper divisors (27714846822).

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

22661642586 is a wasteful number, since it uses less digits than its factorization.

22661642586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6478526.

The product of its digits is 1658880, while the sum is 48.

The spelling of 22661642586 in words is "twenty-two billion, six hundred sixty-one million, six hundred forty-two thousand, five hundred eighty-six".