11521361904944 has 10 divisors (see below), whose sum is σ = 22322638690860. Its totient is φ = 5760680952464.

The previous prime is 11521361904937. The next prime is 11521361905013. The reversal of 11521361904944 is 44940916312511.

It is a junction number, because it is equal to n+sod(n) for n = 11521361904892 and 11521361904901.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360042559514 + ... + 360042559545.

It is an arithmetic number, because the mean of its divisors is an integer number (2232263869086).

Almost surely, 2^{11521361904944} is an apocalyptic number.

It is an amenable number.

11521361904944 is a deficient number, since it is larger than the sum of its proper divisors (10801276785916).

11521361904944 is an equidigital number, since it uses as much as digits as its factorization.

11521361904944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720085119067 (or 720085119061 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 11521361904944 in words is "eleven trillion, five hundred twenty-one billion, three hundred sixty-one million, nine hundred four thousand, nine hundred forty-four".