1111666160 has 80 divisors (see below), whose sum is σ = 2833425792. Its totient is φ = 402259200.

The previous prime is 1111666151. The next prime is 1111666181. The reversal of 1111666160 is 616661111.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

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, 182687 + ... + 188673.

Almost surely, 2^1111666160 is an apocalyptic number.

1111666160 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 1111666160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1416712896).

1111666160 is an abundant number, since it is smaller than the sum of its proper divisors (1721759632).

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

1111666160 is a wasteful number, since it uses less digits than its factorization.

1111666160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6222 (or 6216 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1111666160 is about 33341.6580271588. The cubic root of 1111666160 is about 1035.9166065360.

The spelling of 1111666160 in words is "one billion, one hundred eleven million, six hundred sixty-six thousand, one hundred sixty".