664954711 has 8 divisors (see below), whose sum is σ = 704303424. Its totient is φ = 625632000.

The previous prime is 664954669. The next prime is 664954727. The reversal of 664954711 is 117459466.

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 664954711 - 2¹³ = 664946519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664951711) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 76651 + ... + 84883.

It is an arithmetic number, because the mean of its divisors is an integer number (88037928).

Almost surely, 2^664954711 is an apocalyptic number.

664954711 is a deficient number, since it is larger than the sum of its proper divisors (39348713).

664954711 is a wasteful number, since it uses less digits than its factorization.

664954711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13001.

The product of its digits is 181440, while the sum is 43.

The square root of 664954711 is about 25786.7157854582. The cubic root of 664954711 is about 872.8320582374.

The spelling of 664954711 in words is "six hundred sixty-four million, nine hundred fifty-four thousand, seven hundred eleven".