215205343104 has 64 divisors (see below), whose sum is σ = 596493095040. Its totient is φ = 68616193536.

The previous prime is 215205343091. The next prime is 215205343117. The reversal of 215205343104 is 401343502512.

215205343104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (215205343091) and next prime (215205343117).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12174442 + ... + 12192105.

It is an arithmetic number, because the mean of its divisors is an integer number (9320204610).

Almost surely, 2^215205343104 is an apocalyptic number.

215205343104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

215205343104 is an abundant number, since it is smaller than the sum of its proper divisors (381287751936).

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

215205343104 is a wasteful number, since it uses less digits than its factorization.

215205343104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24366587 (or 24366575 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 215205343104 its reverse (401343502512), we get a palindrome (616548845616).

The spelling of 215205343104 in words is "two hundred fifteen billion, two hundred five million, three hundred forty-three thousand, one hundred four".