611666116 has 12 divisors (see below), whose sum is σ = 1070593020. Its totient is φ = 305782400.

The previous prime is 611666087. The next prime is 611666123.

611666116 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 422713600 + 188952516 = 20560^2 + 13746^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32016 + ... + 47416.

It is an arithmetic number, because the mean of its divisors is an integer number (89216085).

Almost surely, 2^611666116 is an apocalyptic number.

It is an amenable number.

611666116 is a deficient number, since it is larger than the sum of its proper divisors (458926904).

611666116 is a wasteful number, since it uses less digits than its factorization.

611666116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25334 (or 25332 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 611666116 is about 24731.8846026743. The cubic root of 611666116 is about 848.8640493596.

The spelling of 611666116 in words is "six hundred eleven million, six hundred sixty-six thousand, one hundred sixteen".