268017155 has 24 divisors (see below), whose sum is σ = 390474528. Its totient is φ = 172965888.

The previous prime is 268017149. The next prime is 268017161. The reversal of 268017155 is 551710862.

It is an interprime number because it is at equal distance from previous prime (268017149) and next prime (268017161).

It is not a de Polignac number, because 268017155 - 2⁸ = 268016899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3134 + ... + 23363.

It is an arithmetic number, because the mean of its divisors is an integer number (16269772).

Almost surely, 2^268017155 is an apocalyptic number.

268017155 is a deficient number, since it is larger than the sum of its proper divisors (122457373).

268017155 is a wasteful number, since it uses less digits than its factorization.

268017155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26543 (or 26526 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 268017155 is about 16371.2294895649. The cubic root of 268017155 is about 644.7443290911.

The spelling of 268017155 in words is "two hundred sixty-eight million, seventeen thousand, one hundred fifty-five".