116505785 has 16 divisors (see below), whose sum is σ = 156641472. Its totient is φ = 82440000.

The previous prime is 116505761. The next prime is 116505793. The reversal of 116505785 is 587505611.

It is a happy number.

It is not a de Polignac number, because 116505785 - 2¹⁰ = 116504761 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 26591 + ... + 30660.

It is an arithmetic number, because the mean of its divisors is an integer number (9790092).

Almost surely, 2^116505785 is an apocalyptic number.

It is an amenable number.

116505785 is a deficient number, since it is larger than the sum of its proper divisors (40135687).

116505785 is a wasteful number, since it uses less digits than its factorization.

116505785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57304.

The product of its (nonzero) digits is 42000, while the sum is 38.

The square root of 116505785 is about 10793.7845540848. The cubic root of 116505785 is about 488.4076939365.

The spelling of 116505785 in words is "one hundred sixteen million, five hundred five thousand, seven hundred eighty-five".