667997997335 has 8 divisors (see below), whose sum is σ = 801602734416. Its totient is φ = 534394972800.

The previous prime is 667997997319. The next prime is 667997997341. The reversal of 667997997335 is 533799799766.

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

It is not a de Polignac number, because 667997997335 - 2⁴ = 667997997319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 667997997335.

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 7 ways as a sum of consecutive naturals, for example, 700472 + ... + 1351538.

It is an arithmetic number, because the mean of its divisors is an integer number (100200341802).

Almost surely, 2^667997997335 is an apocalyptic number.

667997997335 is a deficient number, since it is larger than the sum of its proper divisors (133604737081).

667997997335 is a wasteful number, since it uses less digits than its factorization.

667997997335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856273.

The product of its digits is 3645685260, while the sum is 80.

The spelling of 667997997335 in words is "six hundred sixty-seven billion, nine hundred ninety-seven million, nine hundred ninety-seven thousand, three hundred thirty-five".