12501386365 has 8 divisors (see below), whose sum is σ = 16155637848. Its totient is φ = 9231792960.

The previous prime is 12501386333. The next prime is 12501386369. The reversal of 12501386365 is 56368310521.

It can be written as a sum of positive squares in 4 ways, for example, as 746273124 + 11755113241 = 27318^2 + 108421^2 .

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

It is not a de Polignac number, because 12501386365 - 2⁵ = 12501386333 is a prime.

It is a super-2 number, since 2×12501386365² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12501386369) 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, 96164446 + ... + 96164575.

It is an arithmetic number, because the mean of its divisors is an integer number (2019454731).

Almost surely, 2^12501386365 is an apocalyptic number.

It is an amenable number.

12501386365 is a deficient number, since it is larger than the sum of its proper divisors (3654251483).

12501386365 is a wasteful number, since it uses less digits than its factorization.

12501386365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192329039.

The product of its (nonzero) digits is 129600, while the sum is 40.

Adding to 12501386365 its reverse (56368310521), we get a palindrome (68869696886).

The spelling of 12501386365 in words is "twelve billion, five hundred one million, three hundred eighty-six thousand, three hundred sixty-five".