11530625565 has 16 divisors (see below), whose sum is σ = 18450370368. Its totient is φ = 6149210496.

The previous prime is 11530625531. The next prime is 11530625593. The reversal of 11530625565 is 56552603511.

It is not a de Polignac number, because 11530625565 - 2⁶ = 11530625501 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309417 + ... + 344673.

It is an arithmetic number, because the mean of its divisors is an integer number (1153148148).

Almost surely, 2^11530625565 is an apocalyptic number.

11530625565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11530625565 is a deficient number, since it is larger than the sum of its proper divisors (6919744803).

11530625565 is a wasteful number, since it uses less digits than its factorization.

11530625565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57068.

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 11530625565 in words is "eleven billion, five hundred thirty million, six hundred twenty-five thousand, five hundred sixty-five".