1166198276 has 6 divisors (see below), whose sum is σ = 2040846990. Its totient is φ = 583099136.

The previous prime is 1166198261. The next prime is 1166198291. The reversal of 1166198276 is 6728916611.

It is an interprime number because it is at equal distance from previous prime (1166198261) and next prime (1166198291).

It can be written as a sum of positive squares in only one way, i.e., 752075776 + 414122500 = 27424^2 + 20350^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1166198276.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145774781 + ... + 145774788.

It is an arithmetic number, because the mean of its divisors is an integer number (340141165).

Almost surely, 2^1166198276 is an apocalyptic number.

It is an amenable number.

1166198276 is a deficient number, since it is larger than the sum of its proper divisors (874648714).

1166198276 is a wasteful number, since it uses less digits than its factorization.

1166198276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291549573 (or 291549571 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 1166198276 is about 34149.6453275872. The cubic root of 1166198276 is about 1052.5856986619.

The spelling of 1166198276 in words is "one billion, one hundred sixty-six million, one hundred ninety-eight thousand, two hundred seventy-six".