667152714827 has 4 divisors (see below), whose sum is σ = 688673770176. Its totient is φ = 645631659480.

The previous prime is 667152714799. The next prime is 667152714887. The reversal of 667152714827 is 728417251766.

667152714827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667152714827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667152714887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10760527628 + ... + 10760527689.

It is an arithmetic number, because the mean of its divisors is an integer number (172168442544).

Almost surely, 2^667152714827 is an apocalyptic number.

667152714827 is a deficient number, since it is larger than the sum of its proper divisors (21521055349).

667152714827 is a wasteful number, since it uses less digits than its factorization.

667152714827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21521055348.

The product of its digits is 7902720, while the sum is 56.

The spelling of 667152714827 in words is "six hundred sixty-seven billion, one hundred fifty-two million, seven hundred fourteen thousand, eight hundred twenty-seven".