667231881045 has 8 divisors (see below), whose sum is σ = 1067571009696. Its totient is φ = 355857003216.

The previous prime is 667231881031. The next prime is 667231881137. The reversal of 667231881045 is 540188132766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 667231881045 - 2²⁴ = 667215103829 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22241062687 + ... + 22241062716.

It is an arithmetic number, because the mean of its divisors is an integer number (133446376212).

Almost surely, 2^667231881045 is an apocalyptic number.

It is an amenable number.

667231881045 is a deficient number, since it is larger than the sum of its proper divisors (400339128651).

667231881045 is a wasteful number, since it uses less digits than its factorization.

667231881045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44482125411.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 667231881045 in words is "six hundred sixty-seven billion, two hundred thirty-one million, eight hundred eighty-one thousand, forty-five".