15204243453215 has 16 divisors (see below), whose sum is σ = 18348638330880. Its totient is φ = 12094419682080.

The previous prime is 15204243453181. The next prime is 15204243453253. The reversal of 15204243453215 is 51235434240251.

It is not a de Polignac number, because 15204243453215 - 2²² = 15204239258911 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1296605 + ... + 5664774.

It is an arithmetic number, because the mean of its divisors is an integer number (1146789895680).

Almost surely, 2^{15204243453215} is an apocalyptic number.

15204243453215 is a deficient number, since it is larger than the sum of its proper divisors (3144394877665).

15204243453215 is a wasteful number, since it uses less digits than its factorization.

15204243453215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6963862.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 15204243453215 its reverse (51235434240251), we get a palindrome (66439677693466).

The spelling of 15204243453215 in words is "fifteen trillion, two hundred four billion, two hundred forty-three million, four hundred fifty-three thousand, two hundred fifteen".