22617264440 has 64 divisors (see below), whose sum is σ = 54092383200. Its totient is φ = 8481538048.

The previous prime is 22617264419. The next prime is 22617264469. The reversal of 22617264440 is 4446271622.

It is a junction number, because it is equal to n+sod(n) for n = 22617264394 and 22617264403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110051 + ... + 239469.

Almost surely, 2^22617264440 is an apocalyptic number.

22617264440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22617264440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27046191600).

22617264440 is an abundant number, since it is smaller than the sum of its proper divisors (31475118760).

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

22617264440 is a wasteful number, since it uses less digits than its factorization.

22617264440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129704 (or 129700 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 38.

The spelling of 22617264440 in words is "twenty-two billion, six hundred seventeen million, two hundred sixty-four thousand, four hundred forty".