664262466 has 32 divisors (see below), whose sum is σ = 1519862400. Its totient is φ = 189595776.

The previous prime is 664262461. The next prime is 664262483.

664262466 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (664262461) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 36520 + ... + 51596.

It is an arithmetic number, because the mean of its divisors is an integer number (47495700).

Almost surely, 2^664262466 is an apocalyptic number.

664262466 is an abundant number, since it is smaller than the sum of its proper divisors (855599934).

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

664262466 is a wasteful number, since it uses less digits than its factorization.

664262466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16138.

The product of its digits is 497664, while the sum is 42.

The square root of 664262466 is about 25773.2897783733. The cubic root of 664262466 is about 872.5290684699.

The spelling of 664262466 in words is "six hundred sixty-four million, two hundred sixty-two thousand, four hundred sixty-six".