664163361466 has 16 divisors (see below), whose sum is σ = 1097573299488. Its totient is φ = 298903402000.

The previous prime is 664163361383. The next prime is 664163361473.

664163361466 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×664163361466² (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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149449480 + ... + 149453923.

It is an arithmetic number, because the mean of its divisors is an integer number (68598331218).

Almost surely, 2^664163361466 is an apocalyptic number.

664163361466 is a deficient number, since it is larger than the sum of its proper divisors (433409938022).

664163361466 is a wasteful number, since it uses less digits than its factorization.

664163361466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298903517.

The product of its digits is 6718464, while the sum is 52.

The spelling of 664163361466 in words is "six hundred sixty-four billion, one hundred sixty-three million, three hundred sixty-one thousand, four hundred sixty-six".