22352462644 has 12 divisors (see below), whose sum is σ = 40174020964. Its totient is φ = 10874170944.

The previous prime is 22352462621. The next prime is 22352462651. The reversal of 22352462644 is 44626425322.

It can be written as a sum of positive squares in 2 ways, for example, as 15910795044 + 6441667600 = 126138^2 + 80260^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22352462597 and 22352462606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75514929 + ... + 75515224.

Almost surely, 2^22352462644 is an apocalyptic number.

It is an amenable number.

22352462644 is a deficient number, since it is larger than the sum of its proper divisors (17821558320).

22352462644 is a wasteful number, since it uses less digits than its factorization.

22352462644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151030194 (or 151030192 counting only the distinct ones).

The product of its digits is 552960, while the sum is 40.

Adding to 22352462644 its reverse (44626425322), we get a palindrome (66978887966).

The spelling of 22352462644 in words is "twenty-two billion, three hundred fifty-two million, four hundred sixty-two thousand, six hundred forty-four".