1116420563 has 16 divisors (see below), whose sum is σ = 1207979520. Its totient is φ = 1028435616.

The previous prime is 1116420541. The next prime is 1116420581. The reversal of 1116420563 is 3650246111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1116420563 - 2⁸ = 1116420307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1116420533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136220 + ... + 144182.

It is an arithmetic number, because the mean of its divisors is an integer number (75498720).

Almost surely, 2^1116420563 is an apocalyptic number.

1116420563 is a deficient number, since it is larger than the sum of its proper divisors (91558957).

1116420563 is a wasteful number, since it uses less digits than its factorization.

1116420563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8186.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1116420563 is about 33412.8801961160. The cubic root of 1116420563 is about 1037.3913179425.

Adding to 1116420563 its reverse (3650246111), we get a palindrome (4766666674).

The spelling of 1116420563 in words is "one billion, one hundred sixteen million, four hundred twenty thousand, five hundred sixty-three".