12252005565136 has 10 divisors (see below), whose sum is σ = 23738260782482. Its totient is φ = 6126002782560.

The previous prime is 12252005565089. The next prime is 12252005565179. The reversal of 12252005565136 is 63156550025221.

It can be written as a sum of positive squares in only one way, i.e., 8744700636736 + 3507304928400 = 2957144^2 + 1872780^2 .

It is a super-2 number, since 2×12252005565136² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12252005565092 and 12252005565101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382875173895 + ... + 382875173926.

Almost surely, 2^{12252005565136} is an apocalyptic number.

12252005565136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12252005565136 is a deficient number, since it is larger than the sum of its proper divisors (11486255217346).

12252005565136 is an equidigital number, since it uses as much as digits as its factorization.

12252005565136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765750347829 (or 765750347823 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 12252005565136 in words is "twelve trillion, two hundred fifty-two billion, five million, five hundred sixty-five thousand, one hundred thirty-six".