611686116 has 18 divisors (see below), whose sum is σ = 1546206662. Its totient is φ = 203895360.

The previous prime is 611686111. The next prime is 611686121.

611686116 is nontrivially palindromic in base 10.

611686116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (611686111) and next prime (611686121).

It can be written as a sum of positive squares in only one way, i.e., 342398016 + 269288100 = 18504^2 + 16410^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 16991281 = 611686116 / (6 + 1 + 1 + 6 + 8 + 6 + 1 + 1 + 6).

It is not an unprimeable number, because it can be changed into a prime (611686111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8495605 + ... + 8495676.

Almost surely, 2^611686116 is an apocalyptic number.

It is an amenable number.

611686116 is an abundant number, since it is smaller than the sum of its proper divisors (934520546).

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

611686116 is a wasteful number, since it uses less digits than its factorization.

611686116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16991291 (or 16991286 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 611686116 is about 24732.2889357213. The cubic root of 611686116 is about 848.8733011914.

The spelling of 611686116 in words is "six hundred eleven million, six hundred eighty-six thousand, one hundred sixteen".