1166804433 has 10 divisors (see below), whose sum is σ = 1743004274. Its totient is φ = 777869568.

The previous prime is 1166804393. The next prime is 1166804437. The reversal of 1166804433 is 3344086611.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 945747009 + 221057424 = 30753^2 + 14868^2 .

It is not a de Polignac number, because 1166804433 - 2¹⁶ = 1166738897 is a prime.

It is a super-2 number, since 2×1166804433² = 2722865169736902978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166804437) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7202416 + ... + 7202577.

Almost surely, 2^1166804433 is an apocalyptic number.

It is an amenable number.

1166804433 is a deficient number, since it is larger than the sum of its proper divisors (576199841).

1166804433 is an equidigital number, since it uses as much as digits as its factorization.

1166804433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14405005 (or 14404996 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1166804433 is about 34158.5191862879. The cubic root of 1166804433 is about 1052.7680352024.

The spelling of 1166804433 in words is "one billion, one hundred sixty-six million, eight hundred four thousand, four hundred thirty-three".