11663540116544 has 28 divisors (see below), whose sum is σ = 23145137985984. Its totient is φ = 5831694324864.

The previous prime is 11663540116489. The next prime is 11663540116559. The reversal of 11663540116544 is 44561104536611.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3956477 + ... + 6243459.

It is an arithmetic number, because the mean of its divisors is an integer number (826612070928).

Almost surely, 2^{11663540116544} is an apocalyptic number.

It is an amenable number.

11663540116544 is a deficient number, since it is larger than the sum of its proper divisors (11481597869440).

11663540116544 is an equidigital number, since it uses as much as digits as its factorization.

11663540116544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366682 (or 2366672 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 11663540116544 in words is "eleven trillion, six hundred sixty-three billion, five hundred forty million, one hundred sixteen thousand, five hundred forty-four".