6446564424232 has 8 divisors (see below), whose sum is σ = 12087308295450. Its totient is φ = 3223282212112.

The previous prime is 6446564424211. The next prime is 6446564424269. The reversal of 6446564424232 is 2324244656446.

It can be written as a sum of positive squares in only one way, i.e., 3992347663396 + 2454216760836 = 1998086^2 + 1566594^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 6446564424232.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402910276507 + ... + 402910276522.

Almost surely, 2^{6446564424232} is an apocalyptic number.

It is an amenable number.

6446564424232 is a deficient number, since it is larger than the sum of its proper divisors (5640743871218).

6446564424232 is a wasteful number, since it uses less digits than its factorization.

6446564424232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805820553035 (or 805820553031 counting only the distinct ones).

The product of its digits is 26542080, while the sum is 52.

The spelling of 6446564424232 in words is "six trillion, four hundred forty-six billion, five hundred sixty-four million, four hundred twenty-four thousand, two hundred thirty-two".