2151832320 has 216 divisors, whose sum is σ = 8122422672. Its totient is φ = 521625600.

The previous prime is 2151832313. The next prime is 2151832337. The reversal of 2151832320 is 232381512.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118230 + ... + 135210.

Almost surely, 2^2151832320 is an apocalyptic number.

2151832320 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 2151832320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4061211336).

2151832320 is an abundant number, since it is smaller than the sum of its proper divisors (5970590352).

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

2151832320 is a wasteful number, since it uses less digits than its factorization.

2151832320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17019 (or 17002 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2151832320 is about 46387.8466842340. The cubic root of 2151832320 is about 1291.0294288761.

The spelling of 2151832320 in words is "two billion, one hundred fifty-one million, eight hundred thirty-two thousand, three hundred twenty".