2163432560 has 80 divisors (see below), whose sum is σ = 5151206016. Its totient is φ = 844621824.

The previous prime is 2163432547. The next prime is 2163432577. The reversal of 2163432560 is 652343612.

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

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, 2093804 + ... + 2094836.

Almost surely, 2^2163432560 is an apocalyptic number.

2163432560 is a gapful number since it is divisible by the number (20) 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 2163432560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2575603008).

2163432560 is an abundant number, since it is smaller than the sum of its proper divisors (2987773456).

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

2163432560 is a wasteful number, since it uses less digits than its factorization.

2163432560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650 (or 1644 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 2163432560 is about 46512.7139608086. The cubic root of 2163432560 is about 1293.3451947992.

The spelling of 2163432560 in words is "two billion, one hundred sixty-three million, four hundred thirty-two thousand, five hundred sixty".