664253352466 has 128 divisors (see below), whose sum is σ = 1176859901952. Its totient is φ = 278197920000.

The previous prime is 664253352331. The next prime is 664253352473.

664253352466 is nontrivially palindromic in base 10.

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 63 ways as a sum of consecutive naturals, for example, 343993521 + ... + 343995451.

It is an arithmetic number, because the mean of its divisors is an integer number (9194217984).

Almost surely, 2^664253352466 is an apocalyptic number.

664253352466 is a deficient number, since it is larger than the sum of its proper divisors (512606549486).

664253352466 is a wasteful number, since it uses less digits than its factorization.

664253352466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248.

The product of its digits is 18662400, while the sum is 52.

The spelling of 664253352466 in words is "six hundred sixty-four billion, two hundred fifty-three million, three hundred fifty-two thousand, four hundred sixty-six".