961168666 has 16 divisors (see below), whose sum is σ = 1507320000. Its totient is φ = 459677724.

The previous prime is 961168657. The next prime is 961168673. The reversal of 961168666 is 666861169.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4585 + ... + 44083.

It is an arithmetic number, because the mean of its divisors is an integer number (94207500).

Almost surely, 2^961168666 is an apocalyptic number.

961168666 is a deficient number, since it is larger than the sum of its proper divisors (546151334).

961168666 is an equidigital number, since it uses as much as digits as its factorization.

961168666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39570 (or 39524 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 961168666 is about 31002.7202999995. The cubic root of 961168666 is about 986.8849699323.

The spelling of 961168666 in words is "nine hundred sixty-one million, one hundred sixty-eight thousand, six hundred sixty-six".