664711432141711 has 16 divisors (see below), whose sum is σ = 677642559897600. Its totient is φ = 651836230437600.

The previous prime is 664711432141703. The next prime is 664711432141733. The reversal of 664711432141711 is 117141234117466.

It is a cyclic number.

It is not a de Polignac number, because 664711432141711 - 2³ = 664711432141703 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 (664711432181711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177137941 + ... + 180851521.

It is an arithmetic number, because the mean of its divisors is an integer number (42352659993600).

Almost surely, 2^{664711432141711} is an apocalyptic number.

664711432141711 is a deficient number, since it is larger than the sum of its proper divisors (12931127755889).

664711432141711 is a wasteful number, since it uses less digits than its factorization.

664711432141711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3721110.

The product of its digits is 677376, while the sum is 49.

The spelling of 664711432141711 in words is "six hundred sixty-four trillion, seven hundred eleven billion, four hundred thirty-two million, one hundred forty-one thousand, seven hundred eleven".