666707373677 has 8 divisors (see below), whose sum is σ = 679390489440. Its totient is φ = 654028099920.

The previous prime is 666707373667. The next prime is 666707373701. The reversal of 666707373677 is 776373707666.

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 666707373677 - 2²⁴ = 666690596461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666707373667) 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, 608927 + ... + 1305452.

It is an arithmetic number, because the mean of its divisors is an integer number (84923811180).

Almost surely, 2^666707373677 is an apocalyptic number.

It is an amenable number.

666707373677 is a deficient number, since it is larger than the sum of its proper divisors (12683115763).

666707373677 is a wasteful number, since it uses less digits than its factorization.

666707373677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921003.

The product of its (nonzero) digits is 196036848, while the sum is 65.

The spelling of 666707373677 in words is "six hundred sixty-six billion, seven hundred seven million, three hundred seventy-three thousand, six hundred seventy-seven".