22645626641 has 16 divisors (see below), whose sum is σ = 25130528448. Its totient is φ = 20232331200.

The previous prime is 22645626623. The next prime is 22645626643. The reversal of 22645626641 is 14662654622.

It is a cyclic number.

It is not a de Polignac number, because 22645626641 - 2²⁶ = 22578517777 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22645626592 and 22645626601.

It is not an unprimeable number, because it can be changed into a prime (22645626643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816386 + ... + 843668.

It is an arithmetic number, because the mean of its divisors is an integer number (1570658028).

Almost surely, 2^22645626641 is an apocalyptic number.

It is an amenable number.

22645626641 is a deficient number, since it is larger than the sum of its proper divisors (2484901807).

22645626641 is a wasteful number, since it uses less digits than its factorization.

22645626641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28592.

The product of its digits is 829440, while the sum is 44.

The spelling of 22645626641 in words is "twenty-two billion, six hundred forty-five million, six hundred twenty-six thousand, six hundred forty-one".