22706881581516 has 192 divisors, whose sum is σ = 59915297756160. Its totient is φ = 6629962752000.

The previous prime is 22706881581493. The next prime is 22706881581521. The reversal of 22706881581516 is 61518518860722.

It is a super-2 number, since 2×22706881581516² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22706881581516.

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 63 ways as a sum of consecutive naturals, for example, 6295224585 + ... + 6295228191.

It is an arithmetic number, because the mean of its divisors is an integer number (312058842480).

Almost surely, 2^{22706881581516} 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 22706881581516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29957648878080).

22706881581516 is an abundant number, since it is smaller than the sum of its proper divisors (37208416174644).

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

22706881581516 is a wasteful number, since it uses less digits than its factorization.

22706881581516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6576 (or 6574 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 60.

The spelling of 22706881581516 in words is "twenty-two trillion, seven hundred six billion, eight hundred eighty-one million, five hundred eighty-one thousand, five hundred sixteen".