2159910720 has 336 divisors, whose sum is σ = 8387608320. Its totient is φ = 505344000.

The previous prime is 2159910679. The next prime is 2159910733. The reversal of 2159910720 is 270199512.

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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 917545 + ... + 919895.

It is an arithmetic number, because the mean of its divisors is an integer number (24963120).

Almost surely, 2^2159910720 is an apocalyptic number.

2159910720 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 2159910720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4193804160).

2159910720 is an abundant number, since it is smaller than the sum of its proper divisors (6227697600).

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

2159910720 is a wasteful number, since it uses less digits than its factorization.

2159910720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414 (or 2401 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 2159910720 is about 46474.8396446938. The cubic root of 2159910720 is about 1292.6430037803.

The spelling of 2159910720 in words is "two billion, one hundred fifty-nine million, nine hundred ten thousand, seven hundred twenty".