22066140456 has 48 divisors (see below), whose sum is σ = 59772503700. Its totient is φ = 7354144512.

The previous prime is 22066140431. The next prime is 22066140461. The reversal of 22066140456 is 65404166022.

22066140456 is a `hidden beast` number, since 2 + 2 + 0 + 66 + 140 + 456 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15687562500 + 6378577956 = 125250^2 + 79866^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22066140456.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 472260 + ... + 516876.

Almost surely, 2^22066140456 is an apocalyptic number.

It is an amenable number.

22066140456 is an abundant number, since it is smaller than the sum of its proper divisors (37706363244).

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

22066140456 is a wasteful number, since it uses less digits than its factorization.

22066140456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51498 (or 51491 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 22066140456 in words is "twenty-two billion, sixty-six million, one hundred forty thousand, four hundred fifty-six".