11561633116066 has 8 divisors (see below), whose sum is σ = 18919036008144. Its totient is φ = 5255287780020.

The previous prime is 11561633116043. The next prime is 11561633116093. The reversal of 11561633116066 is 66061133616511.

11561633116066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 262764388980 + ... + 262764389023.

It is an arithmetic number, because the mean of its divisors is an integer number (2364879501018).

Almost surely, 2^{11561633116066} is an apocalyptic number.

11561633116066 is a deficient number, since it is larger than the sum of its proper divisors (7357402892078).

11561633116066 is a wasteful number, since it uses less digits than its factorization.

11561633116066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525528778016.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 11561633116066 in words is "eleven trillion, five hundred sixty-one billion, six hundred thirty-three million, one hundred sixteen thousand, sixty-six".