667231077005 has 8 divisors (see below), whose sum is σ = 800707275000. Its totient is φ = 533764873216.

The previous prime is 667231076903. The next prime is 667231077043. The reversal of 667231077005 is 500770132766.

It can be written as a sum of positive squares in 4 ways, for example, as 81107622436 + 586123454569 = 284794^2 + 765587^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 667231077005 - 2¹⁴ = 667231060621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2350880 + ... + 2619369.

It is an arithmetic number, because the mean of its divisors is an integer number (100088409375).

Almost surely, 2^667231077005 is an apocalyptic number.

It is an amenable number.

667231077005 is a deficient number, since it is larger than the sum of its proper divisors (133476197995).

667231077005 is a wasteful number, since it uses less digits than its factorization.

667231077005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4997103.

The product of its (nonzero) digits is 370440, while the sum is 44.

The spelling of 667231077005 in words is "six hundred sixty-seven billion, two hundred thirty-one million, seventy-seven thousand, five".