22405299856 has 45 divisors (see below), whose sum is σ = 45407641251. Its totient is φ = 10708992096.

The previous prime is 22405299841. The next prime is 22405299877. The reversal of 22405299856 is 65899250422.

The square root of 22405299856 is 149684.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13770115 + ... + 13771741.

Almost surely, 2^22405299856 is an apocalyptic number.

22405299856 is the 149684-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22405299856

22405299856 is an abundant number, since it is smaller than the sum of its proper divisors (23002341395).

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

22405299856 is an frugal number, since it uses more digits than its factorization.

22405299856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308 (or 1652 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 22405299856 in words is "twenty-two billion, four hundred five million, two hundred ninety-nine thousand, eight hundred fifty-six".