2153032320 has 128 divisors (see below), whose sum is σ = 7266594240. Its totient is φ = 540360704.

The previous prime is 2153032309. The next prime is 2153032327. The reversal of 2153032320 is 232303512.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (2153032327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342 + ... + 65621.

Almost surely, 2^2153032320 is an apocalyptic number.

2153032320 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 2153032320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3633297120).

2153032320 is an abundant number, since it is smaller than the sum of its proper divisors (5113561920).

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

2153032320 is a wasteful number, since it uses less digits than its factorization.

2153032320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66002 (or 65990 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 2153032320 is about 46400.7793038005. The cubic root of 2153032320 is about 1291.2693712738.

Adding to 2153032320 its reverse (232303512), we get a palindrome (2385335832).

The spelling of 2153032320 in words is "two billion, one hundred fifty-three million, thirty-two thousand, three hundred twenty".