11827288165 has 32 divisors (see below), whose sum is σ = 17721379584. Its totient is φ = 7361802240.

The previous prime is 11827288147. The next prime is 11827288181. The reversal of 11827288165 is 56188272811.

It is a happy number.

It is not a de Polignac number, because 11827288165 - 2⁷ = 11827288037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237957 + ... + 283333.

It is an arithmetic number, because the mean of its divisors is an integer number (553793112).

Almost surely, 2^11827288165 is an apocalyptic number.

It is an amenable number.

11827288165 is a deficient number, since it is larger than the sum of its proper divisors (5894091419).

11827288165 is a wasteful number, since it uses less digits than its factorization.

11827288165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46077.

The product of its digits is 430080, while the sum is 49.

It can be divided in two parts, 11827 and 288165, that added together give a palindrome (299992).

The spelling of 11827288165 in words is "eleven billion, eight hundred twenty-seven million, two hundred eighty-eight thousand, one hundred sixty-five".