11545555513 has 8 divisors (see below), whose sum is σ = 11816484768. Its totient is φ = 11274736704.

The previous prime is 11545555507. The next prime is 11545555519. The reversal of 11545555513 is 31555554511.

It is an interprime number because it is at equal distance from previous prime (11545555507) and next prime (11545555519).

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 11545555513 - 2²⁹ = 11008684601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11545555519) 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, 207006 + ... + 256792.

It is an arithmetic number, because the mean of its divisors is an integer number (1477060596).

Almost surely, 2^11545555513 is an apocalyptic number.

It is an amenable number.

11545555513 is a deficient number, since it is larger than the sum of its proper divisors (270929255).

11545555513 is an equidigital number, since it uses as much as digits as its factorization.

11545555513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55223.

The product of its digits is 187500, while the sum is 40.

The spelling of 11545555513 in words is "eleven billion, five hundred forty-five million, five hundred fifty-five thousand, five hundred thirteen".