1166055264 has 120 divisors (see below), whose sum is σ = 3741185448. Its totient is φ = 353341440.

The previous prime is 1166055263. The next prime is 1166055349. The reversal of 1166055264 is 4625506611.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166055263) 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 19 ways as a sum of consecutive naturals, for example, 8064 + ... + 48960.

Almost surely, 2^1166055264 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 1166055264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1870592724).

1166055264 is an abundant number, since it is smaller than the sum of its proper divisors (2575130184).

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

1166055264 is a wasteful number, since it uses less digits than its factorization.

1166055264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40930 (or 40913 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1166055264 is about 34147.5513617009. The cubic root of 1166055264 is about 1052.5426703756.

The spelling of 1166055264 in words is "one billion, one hundred sixty-six million, fifty-five thousand, two hundred sixty-four".