260206111 has 4 divisors (see below), whose sum is σ = 283861224. Its totient is φ = 236551000.

The previous prime is 260206099. The next prime is 260206169. The reversal of 260206111 is 111602062.

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-260206111 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 (260206181) 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, 11827540 + ... + 11827561.

It is an arithmetic number, because the mean of its divisors is an integer number (70965306).

Almost surely, 2^260206111 is an apocalyptic number.

260206111 is a deficient number, since it is larger than the sum of its proper divisors (23655113).

260206111 is a wasteful number, since it uses less digits than its factorization.

260206111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23655112.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 260206111 is about 16130.9054612567. The cubic root of 260206111 is about 638.4190397426.

Adding to 260206111 its reverse (111602062), we get a palindrome (371808173).

It can be divided in two parts, 26020 and 6111, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 260206111 in words is "two hundred sixty million, two hundred six thousand, one hundred eleven".