667376531266711 has 16 divisors (see below), whose sum is σ = 763993505511936. Its totient is φ = 571079511390816.

The previous prime is 667376531266691. The next prime is 667376531266721. The reversal of 667376531266711 is 117662135673766.

It is a cyclic number.

It is not a de Polignac number, because 667376531266711 - 2²³ = 667376522878103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667376531266721) 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, 10807771 + ... + 38099356.

It is an arithmetic number, because the mean of its divisors is an integer number (47749594094496).

Almost surely, 2^{667376531266711} is an apocalyptic number.

667376531266711 is a deficient number, since it is larger than the sum of its proper divisors (96616974245225).

667376531266711 is a wasteful number, since it uses less digits than its factorization.

667376531266711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48910398.

The product of its digits is 240045120, while the sum is 67.

The spelling of 667376531266711 in words is "six hundred sixty-seven trillion, three hundred seventy-six billion, five hundred thirty-one million, two hundred sixty-six thousand, seven hundred eleven".