1116557805 has 16 divisors (see below), whose sum is σ = 1948901184. Its totient is φ = 541361280.

The previous prime is 1116557791. The next prime is 1116557833. The reversal of 1116557805 is 5087556111.

It is not a de Polignac number, because 1116557805 - 2⁷ = 1116557677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3383344 + ... + 3383673.

It is an arithmetic number, because the mean of its divisors is an integer number (121806324).

Almost surely, 2^1116557805 is an apocalyptic number.

1116557805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1116557805 is a deficient number, since it is larger than the sum of its proper divisors (832343379).

1116557805 is a wasteful number, since it uses less digits than its factorization.

1116557805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6767036.

The product of its (nonzero) digits is 42000, while the sum is 39.

The square root of 1116557805 is about 33414.9338619726. The cubic root of 1116557805 is about 1037.4338251691.

The spelling of 1116557805 in words is "one billion, one hundred sixteen million, five hundred fifty-seven thousand, eight hundred five".