966666664 has 8 divisors (see below), whose sum is σ = 1812500010. Its totient is φ = 483333328.

The previous prime is 966666661. The next prime is 966666689. The reversal of 966666664 is 466666669.

966666664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 946792900 + 19873764 = 30770^2 + 4458^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (966666661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60416659 + ... + 60416674.

Almost surely, 2^966666664 is an apocalyptic number.

It is an amenable number.

966666664 is a deficient number, since it is larger than the sum of its proper divisors (845833346).

966666664 is a wasteful number, since it uses less digits than its factorization.

966666664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120833339 (or 120833335 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 55.

The square root of 966666664 is about 31091.2634674115. The cubic root of 966666664 is about 988.7630928724.

The spelling of 966666664 in words is "nine hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty-four".