1166884056 has 112 divisors (see below), whose sum is σ = 3532925760. Its totient is φ = 359017920.

The previous prime is 1166884039. The next prime is 1166884057. The reversal of 1166884056 is 6504886611.

1166884056 is a `hidden beast` number, since 1 + 166 + 88 + 405 + 6 = 666.

It is a super-2 number, since 2×1166884056² = 2723236800294022272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166884057) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 68121 + ... + 83511.

It is an arithmetic number, because the mean of its divisors is an integer number (31543980).

Almost surely, 2^1166884056 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 1166884056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1766462880).

1166884056 is an abundant number, since it is smaller than the sum of its proper divisors (2366041704).

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

1166884056 is a wasteful number, since it uses less digits than its factorization.

1166884056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15428 (or 15409 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 1166884056 is about 34159.6846589660. The cubic root of 1166884056 is about 1052.7919817011.

The spelling of 1166884056 in words is "one billion, one hundred sixty-six million, eight hundred eighty-four thousand, fifty-six".