11811285167 has 6 divisors (see below), whose sum is σ = 12982652424. Its totient is φ = 10737531860.

The previous prime is 11811285131. The next prime is 11811285179. The reversal of 11811285167 is 76158211811.

It is not a de Polignac number, because 11811285167 - 2⁶ = 11811285103 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 (11811285127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48806843 + ... + 48807084.

It is an arithmetic number, because the mean of its divisors is an integer number (2163775404).

Almost surely, 2^11811285167 is an apocalyptic number.

11811285167 is a deficient number, since it is larger than the sum of its proper divisors (1171367257).

11811285167 is an equidigital number, since it uses as much as digits as its factorization.

11811285167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97613949 (or 97613938 counting only the distinct ones).

The product of its digits is 26880, while the sum is 41.

Adding to 11811285167 its reverse (76158211811), we get a palindrome (87969496978).

The spelling of 11811285167 in words is "eleven billion, eight hundred eleven million, two hundred eighty-five thousand, one hundred sixty-seven".