15220215443045 has 8 divisors (see below), whose sum is σ = 18264430264320. Its totient is φ = 12176057866000.

The previous prime is 15220215442973. The next prime is 15220215443047. The reversal of 15220215443045 is 54034451202251.

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

It is not a de Polignac number, because 15220215443045 - 2¹⁰ = 15220215442021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15220215443047) 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, 13723925 + ... + 14791434.

It is an arithmetic number, because the mean of its divisors is an integer number (2283053783040).

Almost surely, 2^{15220215443045} is an apocalyptic number.

It is an amenable number.

15220215443045 is a deficient number, since it is larger than the sum of its proper divisors (3044214821275).

15220215443045 is a wasteful number, since it uses less digits than its factorization.

15220215443045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28622115.

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 15220215443045 its reverse (54034451202251), we get a palindrome (69254666645296).

The spelling of 15220215443045 in words is "fifteen trillion, two hundred twenty billion, two hundred fifteen million, four hundred forty-three thousand, forty-five".