215180215375 has 16 divisors (see below), whose sum is σ = 268980248160. Its totient is φ = 171865108800.

The previous prime is 215180215373. The next prime is 215180215399. The reversal of 215180215375 is 573512081512.

It is a happy number.

215180215375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 215180215375 - 2¹ = 215180215373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215180215373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1317885 + ... + 1472134.

It is an arithmetic number, because the mean of its divisors is an integer number (16811265510).

Almost surely, 2^215180215375 is an apocalyptic number.

215180215375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

215180215375 is a deficient number, since it is larger than the sum of its proper divisors (53800032785).

215180215375 is an equidigital number, since it uses as much as digits as its factorization.

215180215375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790651 (or 2790641 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 40.

Adding to 215180215375 its reverse (573512081512), we get a palindrome (788692296887).

The spelling of 215180215375 in words is "two hundred fifteen billion, one hundred eighty million, two hundred fifteen thousand, three hundred seventy-five".