116781166 has 32 divisors (see below), whose sum is σ = 187971840. Its totient is φ = 54293184.

The previous prime is 116781157. The next prime is 116781167. The reversal of 116781166 is 661187611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116781167) 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, 278505 + ... + 278923.

It is an arithmetic number, because the mean of its divisors is an integer number (5874120).

Almost surely, 2^116781166 is an apocalyptic number.

116781166 is a deficient number, since it is larger than the sum of its proper divisors (71190674).

116781166 is a wasteful number, since it uses less digits than its factorization.

116781166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600.

The product of its digits is 12096, while the sum is 37.

The square root of 116781166 is about 10806.5334867385. The cubic root of 116781166 is about 488.7922023635.

The spelling of 116781166 in words is "one hundred sixteen million, seven hundred eighty-one thousand, one hundred sixty-six".