1166836056 has 128 divisors (see below), whose sum is σ = 3175200000. Its totient is φ = 356106240.

The previous prime is 1166836051. The next prime is 1166836061. The reversal of 1166836056 is 6506386611.

It is an interprime number because it is at equal distance from previous prime (1166836051) and next prime (1166836061).

It is a junction number, because it is equal to n+sod(n) for n = 1166835999 and 1166836017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166836051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2598520 + ... + 2598968.

It is an arithmetic number, because the mean of its divisors is an integer number (24806250).

Almost surely, 2^1166836056 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 1166836056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1587600000).

1166836056 is an abundant number, since it is smaller than the sum of its proper divisors (2008363944).

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

1166836056 is a wasteful number, since it uses less digits than its factorization.

1166836056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 1166836056 is about 34158.9820691425. The cubic root of 1166836056 is about 1052.7775459029. Note that the first 3 decimals are identical.

The spelling of 1166836056 in words is "one billion, one hundred sixty-six million, eight hundred thirty-six thousand, fifty-six".