664452486 has 24 divisors (see below), whose sum is σ = 1440129600. Its totient is φ = 221409936.

The previous prime is 664452479. The next prime is 664452491. The reversal of 664452486 is 684254466.

664452486 is a `hidden beast` number, since 6 + 6 + 44 + 524 + 86 = 666.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 86740 + ... + 94088.

It is an arithmetic number, because the mean of its divisors is an integer number (60005400).

Almost surely, 2^664452486 is an apocalyptic number.

664452486 is an abundant number, since it is smaller than the sum of its proper divisors (775677114).

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

664452486 is a wasteful number, since it uses less digits than its factorization.

664452486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12380 (or 12377 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 664452486 is about 25776.9758893475. The cubic root of 664452486 is about 872.6122595654.

The spelling of 664452486 in words is "six hundred sixty-four million, four hundred fifty-two thousand, four hundred eighty-six".