667233140685 has 16 divisors (see below), whose sum is σ = 1068106060224. Its totient is φ = 355679996672.

The previous prime is 667233140663. The next prime is 667233140723. The reversal of 667233140685 is 586041332766.

It is a cyclic number.

It is not a de Polignac number, because 667233140685 - 2²⁷ = 667098922957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11073852 + ... + 11133941.

It is an arithmetic number, because the mean of its divisors is an integer number (66756628764).

Almost surely, 2^667233140685 is an apocalyptic number.

It is an amenable number.

667233140685 is a deficient number, since it is larger than the sum of its proper divisors (400872919539).

667233140685 is a wasteful number, since it uses less digits than its factorization.

667233140685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22209804.

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 667233140685 in words is "six hundred sixty-seven billion, two hundred thirty-three million, one hundred forty thousand, six hundred eighty-five".