215065360 has 80 divisors (see below), whose sum is σ = 517556160. Its totient is φ = 83059200.

The previous prime is 215065343. The next prime is 215065379. The reversal of 215065360 is 63560512.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347131 + ... + 347749.

It is an arithmetic number, because the mean of its divisors is an integer number (6469452).

Almost surely, 2^215065360 is an apocalyptic number.

215065360 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 215065360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258778080).

215065360 is an abundant number, since it is smaller than the sum of its proper divisors (302490800).

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

215065360 is a wasteful number, since it uses less digits than its factorization.

215065360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 215065360 is about 14665.1068867567. The cubic root of 215065360 is about 599.1333413667.

The spelling of 215065360 in words is "two hundred fifteen million, sixty-five thousand, three hundred sixty".