664737010199 has 4 divisors (see below), whose sum is σ = 664738751664. Its totient is φ = 664735268736.

The previous prime is 664737010181. The next prime is 664737010279. The reversal of 664737010199 is 991010737466.

664737010199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 664737010199 - 2³² = 660442042903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 664737010199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664737016199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23147 + ... + 1153260.

It is an arithmetic number, because the mean of its divisors is an integer number (166184687916).

Almost surely, 2^664737010199 is an apocalyptic number.

664737010199 is a deficient number, since it is larger than the sum of its proper divisors (1741465).

664737010199 is a wasteful number, since it uses less digits than its factorization.

664737010199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741464.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The spelling of 664737010199 in words is "six hundred sixty-four billion, seven hundred thirty-seven million, ten thousand, one hundred ninety-nine".