22456661644 has 6 divisors (see below), whose sum is σ = 39299157884. Its totient is φ = 11228330820.

The previous prime is 22456661603. The next prime is 22456661651. The reversal of 22456661644 is 44616665422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22456661594 and 22456661603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2807082702 + ... + 2807082709.

Almost surely, 2^22456661644 is an apocalyptic number.

It is an amenable number.

22456661644 is a deficient number, since it is larger than the sum of its proper divisors (16842496240).

22456661644 is a wasteful number, since it uses less digits than its factorization.

22456661644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5614165415 (or 5614165413 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 46.

The spelling of 22456661644 in words is "twenty-two billion, four hundred fifty-six million, six hundred sixty-one thousand, six hundred forty-four".