664444702 has 16 divisors (see below), whose sum is σ = 1004152032. Its totient is φ = 329736960.

The previous prime is 664444699. The next prime is 664444717. The reversal of 664444702 is 207444466.

It is a congruent number.

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, 154927 + ... + 159157.

It is an arithmetic number, because the mean of its divisors is an integer number (62759502).

Almost surely, 2^664444702 is an apocalyptic number.

664444702 is a deficient number, since it is larger than the sum of its proper divisors (339707330).

664444702 is a wasteful number, since it uses less digits than its factorization.

664444702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803.

The product of its (nonzero) digits is 129024, while the sum is 37.

The square root of 664444702 is about 25776.8249014498. The cubic root of 664444702 is about 872.6088520278.

The spelling of 664444702 in words is "six hundred sixty-four million, four hundred forty-four thousand, seven hundred two".