12560220513165 has 64 divisors (see below), whose sum is σ = 22875820450560. Its totient is φ = 5833738506240.

The previous prime is 12560220513151. The next prime is 12560220513179. The reversal of 12560220513165 is 56131502206521.

It is an interprime number because it is at equal distance from previous prime (12560220513151) and next prime (12560220513179).

It is not a de Polignac number, because 12560220513165 - 2¹⁰ = 12560220512141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6140442 + ... + 7926251.

It is an arithmetic number, because the mean of its divisors is an integer number (357434694540).

Almost surely, 2^{12560220513165} is an apocalyptic number.

12560220513165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12560220513165 is a deficient number, since it is larger than the sum of its proper divisors (10315599937395).

12560220513165 is a wasteful number, since it uses less digits than its factorization.

12560220513165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14066974.

The product of its (nonzero) digits is 108000, while the sum is 39.

Adding to 12560220513165 its reverse (56131502206521), we get a palindrome (68691722719686).

The spelling of 12560220513165 in words is "twelve trillion, five hundred sixty billion, two hundred twenty million, five hundred thirteen thousand, one hundred sixty-five".