9663966570 has 32 divisors (see below), whose sum is σ = 23687002368. Its totient is φ = 2522226368.

The previous prime is 9663966563. The next prime is 9663966581. The reversal of 9663966570 is 756693669.

It is a self number, because there is not a number n which added to its sum of digits gives 9663966570.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3425529 + ... + 3428348.

It is an arithmetic number, because the mean of its divisors is an integer number (740218824).

Almost surely, 2^9663966570 is an apocalyptic number.

9663966570 is an abundant number, since it is smaller than the sum of its proper divisors (14023035798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9663966570 is a wasteful number, since it uses less digits than its factorization.

9663966570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853934.

The product of its (nonzero) digits is 11022480, while the sum is 57.

The square root of 9663966570 is about 98305.4757884829. The cubic root of 9663966570 is about 2130.0271525556.

The spelling of 9663966570 in words is "nine billion, six hundred sixty-three million, nine hundred sixty-six thousand, five hundred seventy".