116581899 has 16 divisors (see below), whose sum is σ = 177822720. Its totient is φ = 66552960.

The previous prime is 116581897. The next prime is 116581909. The reversal of 116581899 is 998185611.

It is not a de Polignac number, because 116581899 - 2¹ = 116581897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116581897) 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, 26542 + ... + 30620.

It is an arithmetic number, because the mean of its divisors is an integer number (11113920).

Almost surely, 2^116581899 is an apocalyptic number.

116581899 is a deficient number, since it is larger than the sum of its proper divisors (61240821).

116581899 is a wasteful number, since it uses less digits than its factorization.

116581899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5450.

The product of its digits is 155520, while the sum is 48.

The square root of 116581899 is about 10797.3098038354. The cubic root of 116581899 is about 488.5140307754.

The spelling of 116581899 in words is "one hundred sixteen million, five hundred eighty-one thousand, eight hundred ninety-nine".