2115256320 has 360 divisors, whose sum is σ = 7769711040. Its totient is φ = 530841600.

The previous prime is 2115256309. The next prime is 2115256321. The reversal of 2115256320 is 236525112.

It is a happy number.

2115256320 is a `hidden beast` number, since 2 + 1 + 1 + 5 + 25 + 632 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2115256321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14008245 + ... + 14008395.

Almost surely, 2^2115256320 is an apocalyptic number.

2115256320 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 2115256320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3884855520).

2115256320 is an abundant number, since it is smaller than the sum of its proper divisors (5654454720).

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

2115256320 is a wasteful number, since it uses less digits than its factorization.

2115256320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2115256320 is about 45991.9158113684. The cubic root of 2115256320 is about 1283.6727847010.

The spelling of 2115256320 in words is "two billion, one hundred fifteen million, two hundred fifty-six thousand, three hundred twenty".