9965253166 has 32 divisors (see below), whose sum is σ = 16622373600. Its totient is φ = 4442428800.

The previous prime is 9965253157. The next prime is 9965253197. The reversal of 9965253166 is 6613525699.

It is a congruent number.

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, 457720 + ... + 478996.

It is an arithmetic number, because the mean of its divisors is an integer number (519449175).

Almost surely, 2^9965253166 is an apocalyptic number.

9965253166 is a deficient number, since it is larger than the sum of its proper divisors (6657120434).

9965253166 is a wasteful number, since it uses less digits than its factorization.

9965253166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21700.

The product of its digits is 2624400, while the sum is 52.

The square root of 9965253166 is about 99826.1146494243. The cubic root of 9965253166 is about 2151.9364681324.

The spelling of 9965253166 in words is "nine billion, nine hundred sixty-five million, two hundred fifty-three thousand, one hundred sixty-six".