11865927168 has 160 divisors (see below), whose sum is σ = 35560953120. Its totient is φ = 3954935808.

The previous prime is 11865927167. The next prime is 11865927169. The reversal of 11865927168 is 86172956811.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11865927167) and next prime (11865927169).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11865927167) 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 15 ways as a sum of consecutive naturals, for example, 1114446 + ... + 1125042.

It is an arithmetic number, because the mean of its divisors is an integer number (222255957).

Almost surely, 2^11865927168 is an apocalyptic number.

11865927168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11865927168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17780476560).

11865927168 is an abundant number, since it is smaller than the sum of its proper divisors (23695025952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11865927168 is an frugal number, since it uses more digits than its factorization.

11865927168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10636 (or 10602 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 54.

The spelling of 11865927168 in words is "eleven billion, eight hundred sixty-five million, nine hundred twenty-seven thousand, one hundred sixty-eight".