2161473760 has 96 divisors (see below), whose sum is σ = 5500680192. Its totient is φ = 800279040.

The previous prime is 2161473749. The next prime is 2161473761. The reversal of 2161473760 is 673741612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161473761) by changing a digit.

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, 104607 + ... + 123553.

It is an arithmetic number, because the mean of its divisors is an integer number (57298752).

Almost surely, 2^2161473760 is an apocalyptic number.

2161473760 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 2161473760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2750340096).

2161473760 is an abundant number, since it is smaller than the sum of its proper divisors (3339206432).

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

2161473760 is a wasteful number, since it uses less digits than its factorization.

2161473760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19016 (or 19008 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 2161473760 is about 46491.6525840930. The cubic root of 2161473760 is about 1292.9547397430.

The spelling of 2161473760 in words is "two billion, one hundred sixty-one million, four hundred seventy-three thousand, seven hundred sixty".