22165179309680 has 1280 divisors, whose sum is σ = 66487487385600. Its totient is φ = 6819279667200.

The previous prime is 22165179309667. The next prime is 22165179309719. The reversal of 22165179309680 is 8690397156122.

It is a happy number.

It is a super-2 number, since 2×22165179309680² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 70815269204 + ... + 70815269516.

It is an arithmetic number, because the mean of its divisors is an integer number (51943349520).

Almost surely, 2^{22165179309680} is an apocalyptic number.

22165179309680 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 22165179309680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33243743692800).

22165179309680 is an abundant number, since it is smaller than the sum of its proper divisors (44322308075920).

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

22165179309680 is a wasteful number, since it uses less digits than its factorization.

22165179309680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 22165179309680 in words is "twenty-two trillion, one hundred sixty-five billion, one hundred seventy-nine million, three hundred nine thousand, six hundred eighty".