2163409560 has 336 divisors, whose sum is σ = 7920752400. Its totient is φ = 531318528.

The previous prime is 2163409537. The next prime is 2163409571. The reversal of 2163409560 is 659043612.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 4927821 + ... + 4928259.

Almost surely, 2^2163409560 is an apocalyptic number.

2163409560 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 2163409560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3960376200).

2163409560 is an abundant number, since it is smaller than the sum of its proper divisors (5757342840).

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

2163409560 is a wasteful number, since it uses less digits than its factorization.

2163409560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 2163409560 is about 46512.4667159247. The cubic root of 2163409560 is about 1293.3406114894.

The spelling of 2163409560 in words is "two billion, one hundred sixty-three million, four hundred nine thousand, five hundred sixty".