243320225415 has 8 divisors (see below), whose sum is σ = 389312360688. Its totient is φ = 129770786880.

The previous prime is 243320225347. The next prime is 243320225417. The reversal of 243320225415 is 514522023342.

243320225415 = T₁₀₃₉₆₉ + T₁₀₃₉₇₀ + ... + T₁₀₄₀₁₃.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243320225415 - 2¹⁰ = 243320224391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243320225417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8110674166 + ... + 8110674195.

It is an arithmetic number, because the mean of its divisors is an integer number (48664045086).

Almost surely, 2^243320225415 is an apocalyptic number.

243320225415 is a deficient number, since it is larger than the sum of its proper divisors (145992135273).

243320225415 is a wasteful number, since it uses less digits than its factorization.

243320225415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16221348369.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 243320225415 its reverse (514522023342), we get a palindrome (757842248757).

The spelling of 243320225415 in words is "two hundred forty-three billion, three hundred twenty million, two hundred twenty-five thousand, four hundred fifteen".