667031743071 has 12 divisors (see below), whose sum is σ = 999175121672. Its totient is φ = 444687828552.

The previous prime is 667031743067. The next prime is 667031743087. The reversal of 667031743071 is 170347130766.

It is not a de Polignac number, because 667031743071 - 2² = 667031743067 is a prime.

It is a super-2 number, since 2×667031743071² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667031743471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1372493056 + ... + 1372493541.

Almost surely, 2^667031743071 is an apocalyptic number.

667031743071 is a deficient number, since it is larger than the sum of its proper divisors (332143378601).

667031743071 is an equidigital number, since it uses as much as digits as its factorization.

667031743071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744986612 (or 2744986600 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The spelling of 667031743071 in words is "six hundred sixty-seven billion, thirty-one million, seven hundred forty-three thousand, seventy-one".