11545244520 has 64 divisors (see below), whose sum is σ = 35830080000. Its totient is φ = 2972567808.

The previous prime is 11545244497. The next prime is 11545244521. The reversal of 11545244520 is 2544254511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11545244521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1655320 + ... + 1662279.

It is an arithmetic number, because the mean of its divisors is an integer number (559845000).

Almost surely, 2^11545244520 is an apocalyptic number.

11545244520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11545244520 is an abundant number, since it is smaller than the sum of its proper divisors (24284835480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11545244520 is a wasteful number, since it uses less digits than its factorization.

11545244520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317642 (or 3317638 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

Subtracting from 11545244520 its reverse (2544254511), we obtain a palindrome (9000990009).

The spelling of 11545244520 in words is "eleven billion, five hundred forty-five million, two hundred forty-four thousand, five hundred twenty".