1166501456 has 20 divisors (see below), whose sum is σ = 2291059092. Its totient is φ = 575260416.

The previous prime is 1166501443. The next prime is 1166501467. The reversal of 1166501456 is 6541056611.

It can be written as a sum of positive squares in 2 ways, for example, as 303317056 + 863184400 = 17416^2 + 29380^2 .

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 3 ways as a sum of consecutive naturals, for example, 498191 + ... + 500526.

Almost surely, 2^1166501456 is an apocalyptic number.

1166501456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1166501456 is a deficient number, since it is larger than the sum of its proper divisors (1124557636).

1166501456 is an equidigital number, since it uses as much as digits as its factorization.

1166501456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998798 (or 998792 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 1166501456 is about 34154.0840310496. The cubic root of 1166501456 is about 1052.6769053598.

The spelling of 1166501456 in words is "one billion, one hundred sixty-six million, five hundred one thousand, four hundred fifty-six".