22297678956 has 36 divisors (see below), whose sum is σ = 64415517712. Its totient is φ = 6370765344.

The previous prime is 22297678943. The next prime is 22297678957. The reversal of 22297678956 is 65987679222.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 22297678893 and 22297678902.

It is not an unprimeable number, because it can be changed into a prime (22297678957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44241175 + ... + 44241678.

Almost surely, 2^22297678956 is an apocalyptic number.

It is an amenable number.

22297678956 is an abundant number, since it is smaller than the sum of its proper divisors (42117838756).

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

22297678956 is a wasteful number, since it uses less digits than its factorization.

22297678956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88482870 (or 88482865 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The spelling of 22297678956 in words is "twenty-two billion, two hundred ninety-seven million, six hundred seventy-eight thousand, nine hundred fifty-six".