22439616644 has 12 divisors (see below), whose sum is σ = 40104847104. Its totient is φ = 10981088904.

The previous prime is 22439616637. The next prime is 22439616677. The reversal of 22439616644 is 44661693422.

It is a Harshad number since it is a multiple of its sum of digits (47).

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, 59679644 + ... + 59680019.

It is an arithmetic number, because the mean of its divisors is an integer number (3342070592).

Almost surely, 2^22439616644 is an apocalyptic number.

It is an amenable number.

22439616644 is a deficient number, since it is larger than the sum of its proper divisors (17665230460).

22439616644 is a wasteful number, since it uses less digits than its factorization.

22439616644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119359714 (or 119359712 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 47.

The spelling of 22439616644 in words is "twenty-two billion, four hundred thirty-nine million, six hundred sixteen thousand, six hundred forty-four".