667231075448 has 16 divisors (see below), whose sum is σ = 1429780876080. Its totient is φ = 285956175168.

The previous prime is 667231075439. The next prime is 667231075463. The reversal of 667231075448 is 844570132766.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 667231075448.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5957420261 + ... + 5957420372.

It is an arithmetic number, because the mean of its divisors is an integer number (89361304755).

Almost surely, 2^667231075448 is an apocalyptic number.

It is an amenable number.

667231075448 is an abundant number, since it is smaller than the sum of its proper divisors (762549800632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667231075448 is a wasteful number, since it uses less digits than its factorization.

667231075448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11914840646 (or 11914840642 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 667231075448 in words is "six hundred sixty-seven billion, two hundred thirty-one million, seventy-five thousand, four hundred forty-eight".