116591685 has 16 divisors (see below), whose sum is σ = 213196416. Its totient is φ = 53299008.

The previous prime is 116591663. The next prime is 116591707. The reversal of 116591685 is 586195611.

It is an interprime number because it is at equal distance from previous prime (116591663) and next prime (116591707).

It is not a de Polignac number, because 116591685 - 2⁶ = 116591621 is a prime.

It is a super-2 number, since 2×116591685² = 27187242022278450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555094 + ... + 555303.

It is an arithmetic number, because the mean of its divisors is an integer number (13324776).

Almost surely, 2^116591685 is an apocalyptic number.

116591685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

116591685 is a deficient number, since it is larger than the sum of its proper divisors (96604731).

116591685 is a wasteful number, since it uses less digits than its factorization.

116591685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110412.

The product of its digits is 64800, while the sum is 42.

The square root of 116591685 is about 10797.7629627622. The cubic root of 116591685 is about 488.5276991767.

The spelling of 116591685 in words is "one hundred sixteen million, five hundred ninety-one thousand, six hundred eighty-five".