11627251221265 has 8 divisors (see below), whose sum is σ = 14433829102440. Its totient is φ = 8981049219072.

The previous prime is 11627251221253. The next prime is 11627251221269. The reversal of 11627251221265 is 56212215272611.

It can be written as a sum of positive squares in 4 ways, for example, as 313742256129 + 11313508965136 = 560127^2 + 3363556^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11627251221265 - 2⁵ = 11627251221233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11627251221269) 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, 40093969584 + ... + 40093969873.

It is an arithmetic number, because the mean of its divisors is an integer number (1804228637805).

Almost surely, 2^{11627251221265} is an apocalyptic number.

It is an amenable number.

11627251221265 is a deficient number, since it is larger than the sum of its proper divisors (2806577881175).

11627251221265 is an equidigital number, since it uses as much as digits as its factorization.

11627251221265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80187939491.

The product of its digits is 201600, while the sum is 43.

Adding to 11627251221265 its reverse (56212215272611), we get a palindrome (67839466493876).

The spelling of 11627251221265 in words is "eleven trillion, six hundred twenty-seven billion, two hundred fifty-one million, two hundred twenty-one thousand, two hundred sixty-five".