11661066605106 has 48 divisors (see below), whose sum is σ = 26887655058264. Its totient is φ = 3639803392512.

The previous prime is 11661066605051. The next prime is 11661066605113. The reversal of 11661066605106 is 60150666016611.

11661066605106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10206970677225 + 1454095927881 = 3194835^2 + 1205859^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96660685 + ... + 96781248.

Almost surely, 2^{11661066605106} is an apocalyptic number.

11661066605106 is an abundant number, since it is smaller than the sum of its proper divisors (15226588453158).

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

11661066605106 is a wasteful number, since it uses less digits than its factorization.

11661066605106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193442155 (or 193442152 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 11661066605106 in words is "eleven trillion, six hundred sixty-one billion, sixty-six million, six hundred five thousand, one hundred six".