9964444160 has 160 divisors (see below), whose sum is σ = 26155540224. Its totient is φ = 3610624000.

The previous prime is 9964444159. The next prime is 9964444201. The reversal of 9964444160 is 614444699.

It is a tau number, because it is divible by the number of its divisors (160).

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, 12136550 + ... + 12137370.

Almost surely, 2^9964444160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9964444160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13077770112).

9964444160 is an abundant number, since it is smaller than the sum of its proper divisors (16191096064).

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

9964444160 is a wasteful number, since it uses less digits than its factorization.

9964444160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 9964444160 is about 99822.0624912148. The cubic root of 9964444160 is about 2151.8782332303.

The spelling of 9964444160 in words is "nine billion, nine hundred sixty-four million, four hundred forty-four thousand, one hundred sixty".