215103680 has 112 divisors (see below), whose sum is σ = 569817504. Its totient is φ = 76677120.

The previous prime is 215103667. The next prime is 215103697. The reversal of 215103680 is 86301512.

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, 185984 + ... + 187136.

Almost surely, 2^215103680 is an apocalyptic number.

215103680 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 215103680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284908752).

215103680 is an abundant number, since it is smaller than the sum of its proper divisors (354713824).

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

215103680 is a wasteful number, since it uses less digits than its factorization.

215103680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1224 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 215103680 is about 14666.4133311454. The cubic root of 215103680 is about 599.1689234585.

The spelling of 215103680 in words is "two hundred fifteen million, one hundred three thousand, six hundred eighty".