9219665966 has 16 divisors (see below), whose sum is σ = 16492322304. Its totient is φ = 3779490264.

The previous prime is 9219665929. The next prime is 9219665977. The reversal of 9219665966 is 6695669129.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14315930 + ... + 14316573.

It is an arithmetic number, because the mean of its divisors is an integer number (1030770144).

Almost surely, 2^9219665966 is an apocalyptic number.

9219665966 is a deficient number, since it is larger than the sum of its proper divisors (7272656338).

9219665966 is a wasteful number, since it uses less digits than its factorization.

9219665966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28632535.

The product of its digits is 9447840, while the sum is 59.

The square root of 9219665966 is about 96019.0916745206. The cubic root of 9219665966 is about 2096.8710747196.

The spelling of 9219665966 in words is "nine billion, two hundred nineteen million, six hundred sixty-five thousand, nine hundred sixty-six".