22681976616 has 128 divisors (see below), whose sum is σ = 68034288000. Its totient is φ = 6960328704.

The previous prime is 22681976599. The next prime is 22681976621. The reversal of 22681976616 is 61667918622.

22681976616 is a `hidden beast` number, since 2 + 2 + 6 + 8 + 19 + 7 + 6 + 616 = 666.

It is a super-2 number, since 2×22681976616² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1053576 + ... + 1074888.

It is an arithmetic number, because the mean of its divisors is an integer number (531517875).

Almost surely, 2^22681976616 is an apocalyptic number.

22681976616 is a gapful number since it is divisible by the number (26) 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 22681976616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34017144000).

22681976616 is an abundant number, since it is smaller than the sum of its proper divisors (45352311384).

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

22681976616 is a wasteful number, since it uses less digits than its factorization.

22681976616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21720 (or 21710 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 22681976616 in words is "twenty-two billion, six hundred eighty-one million, nine hundred seventy-six thousand, six hundred sixteen".