664114166 has 4 divisors (see below), whose sum is σ = 996171252. Its totient is φ = 332057082.

The previous prime is 664114127. The next prime is 664114247. The reversal of 664114166 is 661411466.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166028540 + ... + 166028543.

It is an arithmetic number, because the mean of its divisors is an integer number (249042813).

Almost surely, 2^664114166 is an apocalyptic number.

664114166 is a deficient number, since it is larger than the sum of its proper divisors (332057086).

664114166 is a wasteful number, since it uses less digits than its factorization.

664114166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332057085.

The product of its digits is 20736, while the sum is 35.

The square root of 664114166 is about 25770.4126082607. The cubic root of 664114166 is about 872.4641314417.

The spelling of 664114166 in words is "six hundred sixty-four million, one hundred fourteen thousand, one hundred sixty-six".