663571466 has 16 divisors (see below), whose sum is σ = 1065506400. Its totient is φ = 308994768.

The previous prime is 663571439. The next prime is 663571477. The reversal of 663571466 is 664175366.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145745 + ... + 150228.

It is an arithmetic number, because the mean of its divisors is an integer number (66594150).

Almost surely, 2^663571466 is an apocalyptic number.

663571466 is a deficient number, since it is larger than the sum of its proper divisors (401934934).

663571466 is a wasteful number, since it uses less digits than its factorization.

663571466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296053.

The product of its digits is 544320, while the sum is 44.

The square root of 663571466 is about 25759.8809391658. The cubic root of 663571466 is about 872.2264136209.

The spelling of 663571466 in words is "six hundred sixty-three million, five hundred seventy-one thousand, four hundred sixty-six".