667031742885 has 32 divisors (see below), whose sum is σ = 1083696463872. Its totient is φ = 350273436480.

The previous prime is 667031742869. The next prime is 667031742889. The reversal of 667031742885 is 588247130766.

It is not a de Polignac number, because 667031742885 - 2⁴ = 667031742869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667031742889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1964352 + ... + 2278758.

It is an arithmetic number, because the mean of its divisors is an integer number (33865514496).

Almost surely, 2^667031742885 is an apocalyptic number.

It is an amenable number.

667031742885 is a deficient number, since it is larger than the sum of its proper divisors (416664720987).

667031742885 is a wasteful number, since it uses less digits than its factorization.

667031742885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316593.

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 667031742885 in words is "six hundred sixty-seven billion, thirty-one million, seven hundred forty-two thousand, eight hundred eighty-five".