11660111600 has 30 divisors (see below), whose sum is σ = 28013419080. Its totient is φ = 4664044480.

The previous prime is 11660111591. The next prime is 11660111611. The reversal of 11660111600 is 611106611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14574740 + ... + 14575539.

It is an arithmetic number, because the mean of its divisors is an integer number (933780636).

Almost surely, 2^11660111600 is an apocalyptic number.

11660111600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11660111600 is an abundant number, since it is smaller than the sum of its proper divisors (16353307480).

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

11660111600 is a wasteful number, since it uses less digits than its factorization.

11660111600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29150297 (or 29150286 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

It can be divided in two parts, 1166011 and 1600, that added together give a palindrome (1167611).

The spelling of 11660111600 in words is "eleven billion, six hundred sixty million, one hundred eleven thousand, six hundred".