9665943952 has 20 divisors (see below), whose sum is σ = 21403161856. Its totient is φ = 4142547360.

The previous prime is 9665943901. The next prime is 9665943961. The reversal of 9665943952 is 2593495669.

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, 43151424 + ... + 43151647.

Almost surely, 2^9665943952 is an apocalyptic number.

It is an amenable number.

9665943952 is an abundant number, since it is smaller than the sum of its proper divisors (11737217904).

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

9665943952 is a wasteful number, since it uses less digits than its factorization.

9665943952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86303086 (or 86303080 counting only the distinct ones).

The product of its digits is 15746400, while the sum is 58.

The square root of 9665943952 is about 98315.5326080269. The cubic root of 9665943952 is about 2130.1724203772.

The spelling of 9665943952 in words is "nine billion, six hundred sixty-five million, nine hundred forty-three thousand, nine hundred fifty-two".