22917112148944 has 80 divisors (see below), whose sum is σ = 49380139468800. Its totient is φ = 10231740887040.

The previous prime is 22917112148923. The next prime is 22917112148977. The reversal of 22917112148944 is 44984121171922.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 15052032 + ... + 16504480.

It is an arithmetic number, because the mean of its divisors is an integer number (617251743360).

Almost surely, 2^{22917112148944} 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 22917112148944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24690069734400).

22917112148944 is an abundant number, since it is smaller than the sum of its proper divisors (26463027319856).

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

22917112148944 is a wasteful number, since it uses less digits than its factorization.

22917112148944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454948 (or 1454942 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 55.

The spelling of 22917112148944 in words is "twenty-two trillion, nine hundred seventeen billion, one hundred twelve million, one hundred forty-eight thousand, nine hundred forty-four".