664052307 has 16 divisors (see below), whose sum is σ = 895361280. Its totient is φ = 437739552.

The previous prime is 664052303. The next prime is 664052309. The reversal of 664052307 is 703250466.

It is not a de Polignac number, because 664052307 - 2² = 664052303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664052303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182298 + ... + 185904.

It is an arithmetic number, because the mean of its divisors is an integer number (55960080).

Almost surely, 2^664052307 is an apocalyptic number.

664052307 is a deficient number, since it is larger than the sum of its proper divisors (231308973).

664052307 is a wasteful number, since it uses less digits than its factorization.

664052307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 664052307 is about 25769.2123861014. The cubic root of 664052307 is about 872.4370420058.

The spelling of 664052307 in words is "six hundred sixty-four million, fifty-two thousand, three hundred seven".