22706657408 has 72 divisors (see below), whose sum is σ = 47810266965. Its totient is φ = 10740441600.

The previous prime is 22706657401. The next prime is 22706657411. The reversal of 22706657408 is 80475660722.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 19174494784 + 3532162624 = 138472^2 + 59432^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106552.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22706657401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 32391458 + ... + 32392158.

Almost surely, 2^22706657408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22706657408

22706657408 is an abundant number, since it is smaller than the sum of its proper divisors (25103609557).

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

22706657408 is an frugal number, since it uses more digits than its factorization.

22706657408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 22706657408 in words is "twenty-two billion, seven hundred six million, six hundred fifty-seven thousand, four hundred eight".