664134611 has 8 divisors (see below), whose sum is σ = 760114944. Its totient is φ = 568430280.

The previous prime is 664134599. The next prime is 664134617. The reversal of 664134611 is 116431466.

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 664134611 - 2¹⁴ = 664118227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664134617) 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, 63815 + ... + 73488.

It is an arithmetic number, because the mean of its divisors is an integer number (95014368).

Almost surely, 2^664134611 is an apocalyptic number.

664134611 is a deficient number, since it is larger than the sum of its proper divisors (95980333).

664134611 is a wasteful number, since it uses less digits than its factorization.

664134611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138001.

The product of its digits is 10368, while the sum is 32.

The square root of 664134611 is about 25770.8092810451. The cubic root of 664134611 is about 872.4730843934.

The spelling of 664134611 in words is "six hundred sixty-four million, one hundred thirty-four thousand, six hundred eleven".