12755111157 has 12 divisors (see below), whose sum is σ = 18425698720. Its totient is φ = 8502646248.

The previous prime is 12755111143. The next prime is 12755111189. The reversal of 12755111157 is 75111155721.

12755111157 is a `hidden beast` number, since 1 + 27 + 5 + 511 + 115 + 7 = 666.

It is not a de Polignac number, because 12755111157 - 2¹⁵ = 12755078389 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 (12755111857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54168 + ... + 168654.

Almost surely, 2^12755111157 is an apocalyptic number.

It is an amenable number.

12755111157 is a deficient number, since it is larger than the sum of its proper divisors (5670587563).

12755111157 is a wasteful number, since it uses less digits than its factorization.

12755111157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126872 (or 126869 counting only the distinct ones).

The product of its digits is 12250, while the sum is 36.

Adding to 12755111157 its reverse (75111155721), we get a palindrome (87866266878).

The spelling of 12755111157 in words is "twelve billion, seven hundred fifty-five million, one hundred eleven thousand, one hundred fifty-seven".