1166399882 has 8 divisors (see below), whose sum is σ = 1750952676. Its totient is φ = 582748992.

The previous prime is 1166399881. The next prime is 1166399887. The reversal of 1166399882 is 2889936611.

It can be written as a sum of positive squares in 2 ways, for example, as 1122853081 + 43546801 = 33509^2 + 6599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1166399882² = 2720977369459227848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1166399881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222233 + ... + 227420.

Almost surely, 2^1166399882 is an apocalyptic number.

1166399882 is a deficient number, since it is larger than the sum of its proper divisors (584552794).

1166399882 is a wasteful number, since it uses less digits than its factorization.

1166399882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450952.

The product of its digits is 1119744, while the sum is 53.

The square root of 1166399882 is about 34152.5970022779. The cubic root of 1166399882 is about 1052.6463502593.

The spelling of 1166399882 in words is "one billion, one hundred sixty-six million, three hundred ninety-nine thousand, eight hundred eighty-two".