255316680623 has 4 divisors (see below), whose sum is σ = 255598177320. Its totient is φ = 255035183928.

The previous prime is 255316680617. The next prime is 255316680701. The reversal of 255316680623 is 326086613552.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255316680623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255316680023) 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, 140746988 + ... + 140748801.

It is an arithmetic number, because the mean of its divisors is an integer number (63899544330).

Almost surely, 2^255316680623 is an apocalyptic number.

255316680623 is a deficient number, since it is larger than the sum of its proper divisors (281496697).

255316680623 is an equidigital number, since it uses as much as digits as its factorization.

255316680623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281496696.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 255316680623 in words is "two hundred fifty-five billion, three hundred sixteen million, six hundred eighty thousand, six hundred twenty-three".