666896713163 has 8 divisors (see below), whose sum is σ = 676355793120. Its totient is φ = 657439471360.

The previous prime is 666896713151. The next prime is 666896713177. The reversal of 666896713163 is 361317698666.

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 666896713163 - 2⁶ = 666896713099 is a prime.

It is a super-2 number, since 2×666896713163² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 666896713096 and 666896713105.

It is not an unprimeable number, because it can be changed into a prime (666896713193) 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, 279593 + ... + 1188261.

It is an arithmetic number, because the mean of its divisors is an integer number (84544474140).

Almost surely, 2^666896713163 is an apocalyptic number.

666896713163 is a deficient number, since it is larger than the sum of its proper divisors (9459079957).

666896713163 is a wasteful number, since it uses less digits than its factorization.

666896713163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919077.

The product of its digits is 35271936, while the sum is 62.

The spelling of 666896713163 in words is "six hundred sixty-six billion, eight hundred ninety-six million, seven hundred thirteen thousand, one hundred sixty-three".