1116551663 has 16 divisors (see below), whose sum is σ = 1185891840. Its totient is φ = 1048320000.

The previous prime is 1116551633. The next prime is 1116551669. The reversal of 1116551663 is 3661556111.

It is a cyclic number.

It is not a de Polignac number, because 1116551663 - 2⁸ = 1116551407 is a prime.

It is a super-2 number, since 2×1116551663² = 2493375232296131138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116551669) 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 15 ways as a sum of consecutive naturals, for example, 1225178 + ... + 1226088.

It is an arithmetic number, because the mean of its divisors is an integer number (74118240).

Almost surely, 2^1116551663 is an apocalyptic number.

1116551663 is a deficient number, since it is larger than the sum of its proper divisors (69340177).

1116551663 is a wasteful number, since it uses less digits than its factorization.

1116551663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438.

The product of its digits is 16200, while the sum is 35.

The square root of 1116551663 is about 33414.8419568311. The cubic root of 1116551663 is about 1037.4319229149.

The spelling of 1116551663 in words is "one billion, one hundred sixteen million, five hundred fifty-one thousand, six hundred sixty-three".