11725626065 has 4 divisors (see below), whose sum is σ = 14070751284. Its totient is φ = 9380500848.

The previous prime is 11725626061. The next prime is 11725626127. The reversal of 11725626065 is 56062652711.

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 4533059584 + 7192566481 = 67328^2 + 84809^2 .

It is a cyclic number.

It is not a de Polignac number, because 11725626065 - 2² = 11725626061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11725626061) 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, 1172562602 + ... + 1172562611.

It is an arithmetic number, because the mean of its divisors is an integer number (3517687821).

Almost surely, 2^11725626065 is an apocalyptic number.

It is an amenable number.

11725626065 is a deficient number, since it is larger than the sum of its proper divisors (2345125219).

11725626065 is an equidigital number, since it uses as much as digits as its factorization.

11725626065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345125218.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 11725626065 in words is "eleven billion, seven hundred twenty-five million, six hundred twenty-six thousand, sixty-five".