8939164560 has 80 divisors (see below), whose sum is σ = 27771097536. Its totient is φ = 2378642944.

The previous prime is 8939164547. The next prime is 8939164571. The reversal of 8939164560 is 654619398.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72202 + ... + 151958.

Almost surely, 2^8939164560 is an apocalyptic number.

8939164560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8939164560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13885548768).

8939164560 is an abundant number, since it is smaller than the sum of its proper divisors (18831932976).

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

8939164560 is a wasteful number, since it uses less digits than its factorization.

8939164560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80240 (or 80234 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The square root of 8939164560 is about 94547.1552189700. The cubic root of 8939164560 is about 2075.3864522392.

The spelling of 8939164560 in words is "eight billion, nine hundred thirty-nine million, one hundred sixty-four thousand, five hundred sixty".