11605550006666 has 64 divisors (see below), whose sum is σ = 21815086841856. Its totient is φ = 4498501795200.

The previous prime is 11605550006647. The next prime is 11605550006671. The reversal of 11605550006666 is 66660005550611.

It is a self number, because there is not a number n which added to its sum of digits gives 11605550006666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54256646 + ... + 54470126.

It is an arithmetic number, because the mean of its divisors is an integer number (340860731904).

Almost surely, 2^{11605550006666} is an apocalyptic number.

11605550006666 is a deficient number, since it is larger than the sum of its proper divisors (10209536835190).

11605550006666 is a wasteful number, since it uses less digits than its factorization.

11605550006666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215307.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 11605550006666 in words is "eleven trillion, six hundred five billion, five hundred fifty million, six thousand, six hundred sixty-six".