664563201 has 8 divisors (see below), whose sum is σ = 938206944. Its totient is φ = 416980800.

The previous prime is 664563191. The next prime is 664563203. The reversal of 664563201 is 102365466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 664563201 - 2⁵ = 664563169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664563203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6515275 + ... + 6515376.

It is an arithmetic number, because the mean of its divisors is an integer number (117275868).

Almost surely, 2^664563201 is an apocalyptic number.

It is an amenable number.

664563201 is a deficient number, since it is larger than the sum of its proper divisors (273643743).

664563201 is a wasteful number, since it uses less digits than its factorization.

664563201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13030671.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 664563201 is about 25779.1233559250. The cubic root of 664563201 is about 872.6607234776.

The spelling of 664563201 in words is "six hundred sixty-four million, five hundred sixty-three thousand, two hundred one".