664611116466 has 16 divisors (see below), whose sum is σ = 1450060617888. Its totient is φ = 201397308000.

The previous prime is 664611116447. The next prime is 664611116479.

664611116466 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×664611116466² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5034932635 + ... + 5034932766.

It is an arithmetic number, because the mean of its divisors is an integer number (90628788618).

Almost surely, 2^664611116466 is an apocalyptic number.

664611116466 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

664611116466 is an abundant number, since it is smaller than the sum of its proper divisors (785449501422).

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

664611116466 is a wasteful number, since it uses less digits than its factorization.

664611116466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10069865417.

The product of its digits is 746496, while the sum is 48.

The spelling of 664611116466 in words is "six hundred sixty-four billion, six hundred eleven million, one hundred sixteen thousand, four hundred sixty-six".