116161812 has 108 divisors (see below), whose sum is σ = 324200604. Its totient is φ = 35043840.

The previous prime is 116161783. The next prime is 116161813. The reversal of 116161812 is 218161611.

It can be written as a sum of positive squares in 6 ways, for example, as 86936976 + 29224836 = 9324^2 + 5406^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116161813) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 370968 + ... + 371280.

Almost surely, 2^116161812 is an apocalyptic number.

116161812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 116161812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162100302).

116161812 is an abundant number, since it is smaller than the sum of its proper divisors (208038792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

116161812 is a wasteful number, since it uses less digits than its factorization.

116161812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 392 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 116161812 is about 10777.8389299525. The cubic root of 116161812 is about 487.9265599867.

The spelling of 116161812 in words is "one hundred sixteen million, one hundred sixty-one thousand, eight hundred twelve".