11500644045 has 48 divisors (see below), whose sum is σ = 21290512320. Its totient is φ = 5282576640.

The previous prime is 11500644017. The next prime is 11500644053. The reversal of 11500644045 is 54044600511.

It is not a de Polignac number, because 11500644045 - 2⁵ = 11500644013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132264 + ... + 201233.

It is an arithmetic number, because the mean of its divisors is an integer number (443552340).

Almost surely, 2^11500644045 is an apocalyptic number.

11500644045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11500644045 is a deficient number, since it is larger than the sum of its proper divisors (9789868275).

11500644045 is a wasteful number, since it uses less digits than its factorization.

11500644045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333546 (or 333535 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 11500644045 in words is "eleven billion, five hundred million, six hundred forty-four thousand, forty-five".