667264214857351 has 4 divisors (see below), whose sum is σ = 667269125210952. Its totient is φ = 667259304503752.

The previous prime is 667264214857313. The next prime is 667264214857433. The reversal of 667264214857351 is 153758412462766.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 667264214857351 - 2⁹ = 667264214856839 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667264214852351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2454972961 + ... + 2455244746.

It is an arithmetic number, because the mean of its divisors is an integer number (166817281302738).

Almost surely, 2^{667264214857351} is an apocalyptic number.

667264214857351 is a deficient number, since it is larger than the sum of its proper divisors (4910353601).

667264214857351 is a wasteful number, since it uses less digits than its factorization.

667264214857351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910353600.

The product of its digits is 406425600, while the sum is 67.

The spelling of 667264214857351 in words is "six hundred sixty-seven trillion, two hundred sixty-four billion, two hundred fourteen million, eight hundred fifty-seven thousand, three hundred fifty-one".