11666111160 has 128 divisors (see below), whose sum is σ = 38270050560. Its totient is φ = 2821478400.

The previous prime is 11666111159. The next prime is 11666111201. The reversal of 11666111160 is 6111166611.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 561355 + ... + 581765.

It is an arithmetic number, because the mean of its divisors is an integer number (298984770).

Almost surely, 2^11666111160 is an apocalyptic number.

11666111160 is a gapful number since it is divisible by the number (10) 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 11666111160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19135025280).

11666111160 is an abundant number, since it is smaller than the sum of its proper divisors (26603939400).

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

11666111160 is a wasteful number, since it uses less digits than its factorization.

11666111160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20869 (or 20865 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

Adding to 11666111160 its reverse (6111166611), we get a palindrome (17777277771).

The spelling of 11666111160 in words is "eleven billion, six hundred sixty-six million, one hundred eleven thousand, one hundred sixty".