22156664304352 has 96 divisors (see below), whose sum is σ = 47094838124544. Its totient is φ = 10231039948800.

The previous prime is 22156664304323. The next prime is 22156664304377. The reversal of 22156664304352 is 25340346665122.

It is a super-2 number, since 2×22156664304352² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22156664304296 and 22156664304305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8707128 + ... + 10960264.

It is an arithmetic number, because the mean of its divisors is an integer number (490571230464).

Almost surely, 2^{22156664304352} 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 22156664304352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23547419062272).

22156664304352 is an abundant number, since it is smaller than the sum of its proper divisors (24938173820192).

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

22156664304352 is a wasteful number, since it uses less digits than its factorization.

22156664304352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253632 (or 2253624 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 49.

The spelling of 22156664304352 in words is "twenty-two trillion, one hundred fifty-six billion, six hundred sixty-four million, three hundred four thousand, three hundred fifty-two".