256116111 has 8 divisors (see below), whose sum is σ = 341904384. Its totient is φ = 170535960.

The previous prime is 256116097. The next prime is 256116131. The reversal of 256116111 is 111611652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256116111 - 2⁷ = 256115983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256116131) 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, 49135 + ... + 54096.

It is an arithmetic number, because the mean of its divisors is an integer number (42738048).

Almost surely, 2^256116111 is an apocalyptic number.

256116111 is a deficient number, since it is larger than the sum of its proper divisors (85788273).

256116111 is a wasteful number, since it uses less digits than its factorization.

256116111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104061.

The product of its digits is 360, while the sum is 24.

The square root of 256116111 is about 16003.6280574125. The cubic root of 256116111 is about 635.0564035293.

Adding to 256116111 its reverse (111611652), we get a palindrome (367727763).

The spelling of 256116111 in words is "two hundred fifty-six million, one hundred sixteen thousand, one hundred eleven".