9944205164 has 18 divisors (see below), whose sum is σ = 17467327332. Its totient is φ = 4953609000.

The previous prime is 9944205133. The next prime is 9944205169. The reversal of 9944205164 is 4615024499.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (9944205169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 276839 + ... + 310689.

It is an arithmetic number, because the mean of its divisors is an integer number (970407074).

Almost surely, 2^9944205164 is an apocalyptic number.

It is an amenable number.

9944205164 is a deficient number, since it is larger than the sum of its proper divisors (7523122168).

9944205164 is a wasteful number, since it uses less digits than its factorization.

9944205164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34397 (or 34124 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 9944205164 is about 99720.6355976535. The cubic root of 9944205164 is about 2150.4203370700.

The spelling of 9944205164 in words is "nine billion, nine hundred forty-four million, two hundred five thousand, one hundred sixty-four".