11818036165 has 8 divisors (see below), whose sum is σ = 15272539128. Its totient is φ = 8727165120.

The previous prime is 11818036129. The next prime is 11818036169. The reversal of 11818036165 is 56163081811.

It can be written as a sum of positive squares in 4 ways, for example, as 2475460516 + 9342575649 = 49754^2 + 96657^2 .

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

It is not a de Polignac number, because 11818036165 - 2⁷ = 11818036037 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 (11818036169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90907906 + ... + 90908035.

It is an arithmetic number, because the mean of its divisors is an integer number (1909067391).

Almost surely, 2^11818036165 is an apocalyptic number.

It is an amenable number.

11818036165 is a deficient number, since it is larger than the sum of its proper divisors (3454502963).

11818036165 is a wasteful number, since it uses less digits than its factorization.

11818036165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181815959.

The product of its (nonzero) digits is 34560, while the sum is 40.

The spelling of 11818036165 in words is "eleven billion, eight hundred eighteen million, thirty-six thousand, one hundred sixty-five".