664675201 has 8 divisors (see below), whose sum is σ = 670602240. Its totient is φ = 658759248.

The previous prime is 664675199. The next prime is 664675211. The reversal of 664675201 is 102576466.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 664675201 - 2¹ = 664675199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664675211) 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, 157815 + ... + 161971.

It is an arithmetic number, because the mean of its divisors is an integer number (83825280).

Almost surely, 2^664675201 is an apocalyptic number.

It is an amenable number.

664675201 is a deficient number, since it is larger than the sum of its proper divisors (5927039).

664675201 is a wasteful number, since it uses less digits than its factorization.

664675201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 664675201 is about 25781.2955648082. The cubic root of 664675201 is about 872.7097444038.

The spelling of 664675201 in words is "six hundred sixty-four million, six hundred seventy-five thousand, two hundred one".