664202466 has 96 divisors (see below), whose sum is σ = 1557024768. Its totient is φ = 204197760.

The previous prime is 664202459. The next prime is 664202477.

664202466 is a `hidden beast` number, since 6 + 642 + 0 + 2 + 4 + 6 + 6 = 666.

664202466 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 664202466.

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 47 ways as a sum of consecutive naturals, for example, 1093935 + ... + 1094541.

It is an arithmetic number, because the mean of its divisors is an integer number (16219008).

Almost surely, 2^664202466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 664202466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (778512384).

664202466 is an abundant number, since it is smaller than the sum of its proper divisors (892822302).

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

664202466 is a wasteful number, since it uses less digits than its factorization.

664202466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 664202466 is about 25772.1257563283. The cubic root of 664202466 is about 872.5027970671.

It can be divided in two parts, 66420 and 2466, that added together give a palindrome (68886).

The spelling of 664202466 in words is "six hundred sixty-four million, two hundred two thousand, four hundred sixty-six".