1166403768 has 128 divisors (see below), whose sum is σ = 3201792000. Its totient is φ = 352719360.

The previous prime is 1166403739. The next prime is 1166403781. The reversal of 1166403768 is 8673046611.

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, 1540446 + ... + 1541202.

It is an arithmetic number, because the mean of its divisors is an integer number (25014000).

Almost surely, 2^1166403768 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 1166403768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1600896000).

1166403768 is an abundant number, since it is smaller than the sum of its proper divisors (2035388232).

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

1166403768 is a wasteful number, since it uses less digits than its factorization.

1166403768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1166403768 is about 34152.6538939509. The cubic root of 1166403768 is about 1052.6475192635.

The spelling of 1166403768 in words is "one billion, one hundred sixty-six million, four hundred three thousand, seven hundred sixty-eight".