22680620644 has 72 divisors (see below), whose sum is σ = 47173383936. Its totient is φ = 9451512000.

The previous prime is 22680620621. The next prime is 22680620647. The reversal of 22680620644 is 44602608622.

It is a junction number, because it is equal to n+sod(n) for n = 22680620597 and 22680620606.

It is not an unprimeable number, because it can be changed into a prime (22680620647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 469374 + ... + 515434.

It is an arithmetic number, because the mean of its divisors is an integer number (655185888).

Almost surely, 2^22680620644 is an apocalyptic number.

It is an amenable number.

22680620644 is an abundant number, since it is smaller than the sum of its proper divisors (24492763292).

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

22680620644 is a wasteful number, since it uses less digits than its factorization.

22680620644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46145 (or 46124 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 22680620644 in words is "twenty-two billion, six hundred eighty million, six hundred twenty thousand, six hundred forty-four".