268601111 has 4 divisors (see below), whose sum is σ = 269622672. Its totient is φ = 267579552.

The previous prime is 268601087. The next prime is 268601131. The reversal of 268601111 is 111106862.

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-268601111 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 (268601131) 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, 510386 + ... + 510911.

It is an arithmetic number, because the mean of its divisors is an integer number (67405668).

Almost surely, 2^268601111 is an apocalyptic number.

268601111 is a deficient number, since it is larger than the sum of its proper divisors (1021561).

268601111 is a wasteful number, since it uses less digits than its factorization.

268601111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021560.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 268601111 is about 16389.0546097083. The cubic root of 268601111 is about 645.2122459162.

Adding to 268601111 its reverse (111106862), we get a palindrome (379707973).

The spelling of 268601111 in words is "two hundred sixty-eight million, six hundred one thousand, one hundred eleven".