959978666 has 8 divisors (see below), whose sum is σ = 1470605760. Its totient is φ = 469776748.

The previous prime is 959978659. The next prime is 959978681. The reversal of 959978666 is 666879959.

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

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, 5106176 + ... + 5106363.

It is an arithmetic number, because the mean of its divisors is an integer number (183825720).

Almost surely, 2^959978666 is an apocalyptic number.

959978666 is a deficient number, since it is larger than the sum of its proper divisors (510627094).

959978666 is a wasteful number, since it uses less digits than its factorization.

959978666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10212588.

The product of its digits is 44089920, while the sum is 65.

The square root of 959978666 is about 30983.5224918020. The cubic root of 959978666 is about 986.4775221547.

The spelling of 959978666 in words is "nine hundred fifty-nine million, nine hundred seventy-eight thousand, six hundred sixty-six".