11545621255 has 8 divisors (see below), whose sum is σ = 15833994912. Its totient is φ = 7916997408.

The previous prime is 11545621253. The next prime is 11545621267. The reversal of 11545621255 is 55212654511.

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 11545621255 - 2¹ = 11545621253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11545621253) 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, 164937412 + ... + 164937481.

It is an arithmetic number, because the mean of its divisors is an integer number (1979249364).

Almost surely, 2^11545621255 is an apocalyptic number.

11545621255 is a deficient number, since it is larger than the sum of its proper divisors (4288373657).

11545621255 is an equidigital number, since it uses as much as digits as its factorization.

11545621255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329874905.

The product of its digits is 60000, while the sum is 37.

The spelling of 11545621255 in words is "eleven billion, five hundred forty-five million, six hundred twenty-one thousand, two hundred fifty-five".