12515335064201 has 4 divisors (see below), whose sum is σ = 12554815616772. Its totient is φ = 12475854511632.

The previous prime is 12515335064153. The next prime is 12515335064203. The reversal of 12515335064201 is 10246053351521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1764051486976 + 10751283577225 = 1328176^2 + 3278915^2 .

It is a cyclic number.

It is not a de Polignac number, because 12515335064201 - 2¹⁰ = 12515335063177 is a prime.

It is a super-2 number, since 2×12515335064201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12515335064203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19740275810 + ... + 19740276443.

It is an arithmetic number, because the mean of its divisors is an integer number (3138703904193).

Almost surely, 2^{12515335064201} is an apocalyptic number.

It is an amenable number.

12515335064201 is a deficient number, since it is larger than the sum of its proper divisors (39480552571).

12515335064201 is an equidigital number, since it uses as much as digits as its factorization.

12515335064201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39480552570.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 12515335064201 in words is "twelve trillion, five hundred fifteen billion, three hundred thirty-five million, sixty-four thousand, two hundred one".