11505022240 has 48 divisors (see below), whose sum is σ = 27187470072. Its totient is φ = 4600848384.

The previous prime is 11505022237. The next prime is 11505022261. The reversal of 11505022240 is 4222050511.

It can be written as a sum of positive squares in 4 ways, for example, as 9468846864 + 2036175376 = 97308^2 + 45124^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930982 + ... + 943258.

Almost surely, 2^11505022240 is an apocalyptic number.

11505022240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11505022240 is an abundant number, since it is smaller than the sum of its proper divisors (15682447832).

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

11505022240 is a wasteful number, since it uses less digits than its factorization.

11505022240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18149 (or 18141 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 11505022240 its reverse (4222050511), we get a palindrome (15727072751).

The spelling of 11505022240 in words is "eleven billion, five hundred five million, twenty-two thousand, two hundred forty".