664066010 has 16 divisors (see below), whose sum is σ = 1227625416. Its totient is φ = 258447168.

The previous prime is 664066003. The next prime is 664066037. The reversal of 664066010 is 10660466.

It can be written as a sum of positive squares in 4 ways, for example, as 664041361 + 24649 = 25769^2 + 157^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 897017 + ... + 897756.

Almost surely, 2^664066010 is an apocalyptic number.

664066010 is a deficient number, since it is larger than the sum of its proper divisors (563559406).

664066010 is a wasteful number, since it uses less digits than its factorization.

664066010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794817.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 664066010 is about 25769.4782640239. The cubic root of 664066010 is about 872.4430430002.

The spelling of 664066010 in words is "six hundred sixty-four million, sixty-six thousand, ten".