1166822826 has 64 divisors (see below), whose sum is σ = 2607661056. Its totient is φ = 345643200.

The previous prime is 1166822779. The next prime is 1166822827. The reversal of 1166822826 is 6282286611.

It is a super-2 number, since 2×1166822826² = 2722951014549252552, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1166822827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 509055 + ... + 511341.

It is an arithmetic number, because the mean of its divisors is an integer number (40744704).

Almost surely, 2^1166822826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166822826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1303830528).

1166822826 is an abundant number, since it is smaller than the sum of its proper divisors (1440838230).

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

1166822826 is a wasteful number, since it uses less digits than its factorization.

1166822826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547.

The product of its digits is 110592, while the sum is 42.

The square root of 1166822826 is about 34158.7884152819. The cubic root of 1166822826 is about 1052.7735669665.

The spelling of 1166822826 in words is "one billion, one hundred sixty-six million, eight hundred twenty-two thousand, eight hundred twenty-six".