1166790553 has 8 divisors (see below), whose sum is σ = 1207425600. Its totient is φ = 1126182288.

The previous prime is 1166790487. The next prime is 1166790607. The reversal of 1166790553 is 3550976611.

It is a happy number.

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

It is not a de Polignac number, because 1166790553 - 2⁹ = 1166790041 is a prime.

It is a super-2 number, since 2×1166790553² = 2722800389140091618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166790353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128518 + ... + 137296.

It is an arithmetic number, because the mean of its divisors is an integer number (150928200).

Almost surely, 2^1166790553 is an apocalyptic number.

It is an amenable number.

1166790553 is a deficient number, since it is larger than the sum of its proper divisors (40635047).

1166790553 is an equidigital number, since it uses as much as digits as its factorization.

1166790553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13391.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 1166790553 is about 34158.3160152839. The cubic root of 1166790553 is about 1052.7638607015.

The spelling of 1166790553 in words is "one billion, one hundred sixty-six million, seven hundred ninety thousand, five hundred fifty-three".