1166853660 has 144 divisors (see below), whose sum is σ = 3829672224. Its totient is φ = 264671232.

The previous prime is 1166853647. The next prime is 1166853691. The reversal of 1166853660 is 663586611.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 401332 + ... + 404228.

It is an arithmetic number, because the mean of its divisors is an integer number (26594946).

Almost surely, 2^1166853660 is an apocalyptic number.

1166853660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166853660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1914836112).

1166853660 is an abundant number, since it is smaller than the sum of its proper divisors (2662818564).

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

1166853660 is a wasteful number, since it uses less digits than its factorization.

1166853660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060 (or 3051 counting only the distinct ones).

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

The square root of 1166853660 is about 34159.2397456384. The cubic root of 1166853660 is about 1052.7828402779.

The spelling of 1166853660 in words is "one billion, one hundred sixty-six million, eight hundred fifty-three thousand, six hundred sixty".