268808655 has 8 divisors (see below), whose sum is σ = 430093872. Its totient is φ = 143364608.

The previous prime is 268808653. The next prime is 268808671. The reversal of 268808655 is 556808862.

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 268808655 - 2¹ = 268808653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268808653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8960274 + ... + 8960303.

It is an arithmetic number, because the mean of its divisors is an integer number (53761734).

Almost surely, 2^268808655 is an apocalyptic number.

268808655 is a deficient number, since it is larger than the sum of its proper divisors (161285217).

268808655 is a wasteful number, since it uses less digits than its factorization.

268808655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17920585.

The product of its (nonzero) digits is 921600, while the sum is 48.

The square root of 268808655 is about 16395.3851738835. The cubic root of 268808655 is about 645.3783850344.

The spelling of 268808655 in words is "two hundred sixty-eight million, eight hundred eight thousand, six hundred fifty-five".