22679145856 has 64 divisors (see below), whose sum is σ = 46502232480. Its totient is φ = 11009323008.

The previous prime is 22679145847. The next prime is 22679145857. The reversal of 22679145856 is 65854197622.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 22679145797 and 22679145806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22679145857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2301516 + ... + 2311348.

Almost surely, 2^22679145856 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 22679145856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23251116240).

22679145856 is an abundant number, since it is smaller than the sum of its proper divisors (23823086624).

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

22679145856 is an equidigital number, since it uses as much as digits as its factorization.

22679145856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10371 (or 10359 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 55.

The spelling of 22679145856 in words is "twenty-two billion, six hundred seventy-nine million, one hundred forty-five thousand, eight hundred fifty-six".