685132663255 has 8 divisors (see below), whose sum is σ = 825781043952. Its totient is φ = 545691565248.

The previous prime is 685132663231. The next prime is 685132663297. The reversal of 685132663255 is 552366231586.

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 685132663255 - 2¹¹ = 685132661207 is a prime.

It is a Duffinian 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, 301819422 + ... + 301821691.

It is an arithmetic number, because the mean of its divisors is an integer number (103222630494).

Almost surely, 2^685132663255 is an apocalyptic number.

685132663255 is a deficient number, since it is larger than the sum of its proper divisors (140648380697).

685132663255 is a wasteful number, since it uses less digits than its factorization.

685132663255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603641345.

The product of its digits is 7776000, while the sum is 52.

The spelling of 685132663255 in words is "six hundred eighty-five billion, one hundred thirty-two million, six hundred sixty-three thousand, two hundred fifty-five".