22646367644 has 12 divisors (see below), whose sum is σ = 39638969664. Its totient is φ = 11320947744.

The previous prime is 22646367637. The next prime is 22646367647. The reversal of 22646367644 is 44676364622.

It is a super-2 number, since 2×22646367644² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22646367592 and 22646367601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22646367647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536129 + ... + 576824.

It is an arithmetic number, because the mean of its divisors is an integer number (3303247472).

Almost surely, 2^22646367644 is an apocalyptic number.

It is an amenable number.

22646367644 is a deficient number, since it is larger than the sum of its proper divisors (16992602020).

22646367644 is a wasteful number, since it uses less digits than its factorization.

22646367644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118044 (or 1118042 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 50.

The spelling of 22646367644 in words is "twenty-two billion, six hundred forty-six million, three hundred sixty-seven thousand, six hundred forty-four".