116781611 has 8 divisors (see below), whose sum is σ = 117646848. Its totient is φ = 115920000.

The previous prime is 116781589. The next prime is 116781641. The reversal of 116781611 is 116187611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116781611 - 2⁶ = 116781547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116781641) 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 7 ways as a sum of consecutive naturals, for example, 100886 + ... + 102036.

It is an arithmetic number, because the mean of its divisors is an integer number (14705856).

Almost surely, 2^116781611 is an apocalyptic number.

116781611 is a deficient number, since it is larger than the sum of its proper divisors (865237).

116781611 is a wasteful number, since it uses less digits than its factorization.

116781611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813.

The product of its digits is 2016, while the sum is 32.

The square root of 116781611 is about 10806.5540761151. The cubic root of 116781611 is about 488.7928232178.

The spelling of 116781611 in words is "one hundred sixteen million, seven hundred eighty-one thousand, six hundred eleven".