22279064562 has 48 divisors (see below), whose sum is σ = 49911293952. Its totient is φ = 7174846080.

The previous prime is 22279064557. The next prime is 22279064581. The reversal of 22279064562 is 26546097222.

22279064562 is a `hidden beast` number, since 2 + 2 + 27 + 9 + 0 + 64 + 562 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 305818 + ... + 371594.

It is an arithmetic number, because the mean of its divisors is an integer number (1039818624).

Almost surely, 2^22279064562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22279064562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24955646976).

22279064562 is an abundant number, since it is smaller than the sum of its proper divisors (27632229390).

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

22279064562 is a wasteful number, since it uses less digits than its factorization.

22279064562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66423 (or 66420 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 22279064562 in words is "twenty-two billion, two hundred seventy-nine million, sixty-four thousand, five hundred sixty-two".