1113166880 has 192 divisors, whose sum is σ = 3181731840. Its totient is φ = 359783424.

The previous prime is 1113166871. The next prime is 1113166883. The reversal of 1113166880 is 886613111.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1113166880.

It is not an unprimeable number, because it can be changed into a prime (1113166883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2034767 + ... + 2035313.

It is an arithmetic number, because the mean of its divisors is an integer number (16571520).

Almost surely, 2^1113166880 is an apocalyptic number.

1113166880 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 1113166880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1590865920).

1113166880 is an abundant number, since it is smaller than the sum of its proper divisors (2068564960).

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

1113166880 is a wasteful number, since it uses less digits than its factorization.

1113166880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 1113166880 is about 33364.1556164696. The cubic root of 1113166880 is about 1036.3825502951.

Adding to 1113166880 its reverse (886613111), we get a palindrome (1999779991).

The spelling of 1113166880 in words is "one billion, one hundred thirteen million, one hundred sixty-six thousand, eight hundred eighty".