664114650 has 48 divisors (see below), whose sum is σ = 1718622144. Its totient is φ = 169396480.

The previous prime is 664114637. The next prime is 664114663. The reversal of 664114650 is 56411466.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (664114637) and next prime (664114663).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92799 + ... + 99698.

It is an arithmetic number, because the mean of its divisors is an integer number (35804628).

Almost surely, 2^664114650 is an apocalyptic number.

664114650 is an abundant number, since it is smaller than the sum of its proper divisors (1054507494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664114650 is a wasteful number, since it uses less digits than its factorization.

664114650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192535 (or 192530 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 664114650 is about 25770.4219988730. The cubic root of 664114650 is about 872.4643433895.

The spelling of 664114650 in words is "six hundred sixty-four million, one hundred fourteen thousand, six hundred fifty".