22036376728656 has 30 divisors (see below), whose sum is σ = 61671248761850. Its totient is φ = 7345458909504.

The previous prime is 22036376728643. The next prime is 22036376728687. The reversal of 22036376728656 is 65682767363022.

22036376728656 is a `hidden beast` number, since 2 + 203 + 6 + 376 + 7 + 2 + 8 + 6 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14658177960000 + 7378198768656 = 3828600^2 + 2716284^2 .

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 junction number, because it is equal to n+sod(n) for n = 22036376728593 and 22036376728602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76515196831 + ... + 76515197118.

Almost surely, 2^{22036376728656} is an apocalyptic number.

It is an amenable number.

22036376728656 is an abundant number, since it is smaller than the sum of its proper divisors (39634872033194).

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

22036376728656 is a wasteful number, since it uses less digits than its factorization.

22036376728656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153030393963 (or 153030393954 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 63.

The spelling of 22036376728656 in words is "twenty-two trillion, thirty-six billion, three hundred seventy-six million, seven hundred twenty-eight thousand, six hundred fifty-six".