6664464450 has 72 divisors (see below), whose sum is σ = 20463089088. Its totient is φ = 1523305440.

The previous prime is 6664464437. The next prime is 6664464461. The reversal of 6664464450 is 544644666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 6664464396 and 6664464405.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1054702 + ... + 1061001.

Almost surely, 2^6664464450 is an apocalyptic number.

6664464450 is an abundant number, since it is smaller than the sum of its proper divisors (13798624638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6664464450 is a wasteful number, since it uses less digits than its factorization.

6664464450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115728 (or 2115720 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

The square root of 6664464450 is about 81636.1712110508. The cubic root of 6664464450 is about 1881.8647984162.

The spelling of 6664464450 in words is "six billion, six hundred sixty-four million, four hundred sixty-four thousand, four hundred fifty".