664867010 has 16 divisors (see below), whose sum is σ = 1199226816. Its totient is φ = 265398768.

The previous prime is 664867009. The next prime is 664867031. The reversal of 664867010 is 10768466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63392 + ... + 73131.

It is an arithmetic number, because the mean of its divisors is an integer number (74951676).

Almost surely, 2^664867010 is an apocalyptic number.

664867010 is a deficient number, since it is larger than the sum of its proper divisors (534359806).

664867010 is a wasteful number, since it uses less digits than its factorization.

664867010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137017.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 664867010 is about 25785.0152220238. The cubic root of 664867010 is about 872.7936838897.

The spelling of 664867010 in words is "six hundred sixty-four million, eight hundred sixty-seven thousand, ten".