664152205 has 8 divisors (see below), whose sum is σ = 798111000. Its totient is φ = 530569536.

The previous prime is 664152191. The next prime is 664152217. The reversal of 664152205 is 502251466.

664152205 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 64979721 + 599172484 = 8061^2 + 24478^2 .

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 664152205 - 2⁷ = 664152077 is a prime.

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, 90130 + ... + 97219.

It is an arithmetic number, because the mean of its divisors is an integer number (99763875).

Almost surely, 2^664152205 is an apocalyptic number.

It is an amenable number.

664152205 is a deficient number, since it is larger than the sum of its proper divisors (133958795).

664152205 is a wasteful number, since it uses less digits than its factorization.

664152205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188063.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 664152205 is about 25771.1506339938. The cubic root of 664152205 is about 872.4807887331.

The spelling of 664152205 in words is "six hundred sixty-four million, one hundred fifty-two thousand, two hundred five".