12515600650501 has 4 divisors (see below), whose sum is σ = 13478339162092. Its totient is φ = 11552862138912.

The previous prime is 12515600650477. The next prime is 12515600650537. The reversal of 12515600650501 is 10505600651521.

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 676317088225 + 11839283562276 = 822385^2 + 3440826^2 .

It is a cyclic number.

It is not a de Polignac number, because 12515600650501 - 2¹³ = 12515600642309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515600656501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481369255776 + ... + 481369255801.

It is an arithmetic number, because the mean of its divisors is an integer number (3369584790523).

Almost surely, 2^{12515600650501} is an apocalyptic number.

It is an amenable number.

12515600650501 is a deficient number, since it is larger than the sum of its proper divisors (962738511591).

12515600650501 is an equidigital number, since it uses as much as digits as its factorization.

12515600650501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962738511590.

The product of its (nonzero) digits is 45000, while the sum is 37.

The spelling of 12515600650501 in words is "twelve trillion, five hundred fifteen billion, six hundred million, six hundred fifty thousand, five hundred one".