966116661 has 8 divisors (see below), whose sum is σ = 1319574144. Its totient is φ = 628368480.

The previous prime is 966116659. The next prime is 966116687. The reversal of 966116661 is 166611669.

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

It is not a de Polignac number, because 966116661 - 2¹ = 966116659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (966116621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3927181 + ... + 3927426.

It is an arithmetic number, because the mean of its divisors is an integer number (164946768).

Almost surely, 2^966116661 is an apocalyptic number.

It is an amenable number.

966116661 is a deficient number, since it is larger than the sum of its proper divisors (353457483).

966116661 is a wasteful number, since it uses less digits than its factorization.

966116661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7854651.

The product of its digits is 69984, while the sum is 42.

The square root of 966116661 is about 31082.4172322553. The cubic root of 966116661 is about 988.5755322377.

The spelling of 966116661 in words is "nine hundred sixty-six million, one hundred sixteen thousand, six hundred sixty-one".