1121786616 has 64 divisors (see below), whose sum is σ = 3002896800. Its totient is φ = 347967488.

The previous prime is 1121786593. The next prime is 1121786621. The reversal of 1121786616 is 6166871211.

1121786616 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20866 + ... + 51758.

Almost surely, 2^1121786616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121786616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501448400).

1121786616 is an abundant number, since it is smaller than the sum of its proper divisors (1881110184).

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

1121786616 is a wasteful number, since it uses less digits than its factorization.

1121786616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31008 (or 31004 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 1121786616 is about 33493.0831068148. The cubic root of 1121786616 is about 1039.0507289741.

The spelling of 1121786616 in words is "one billion, one hundred twenty-one million, seven hundred eighty-six thousand, six hundred sixteen".