11066155566 has 32 divisors (see below), whose sum is σ = 22675500288. Its totient is φ = 3599258880.

The previous prime is 11066155537. The next prime is 11066155589. The reversal of 11066155566 is 66555166011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92580 + ... + 175223.

It is an arithmetic number, because the mean of its divisors is an integer number (708609384).

Almost surely, 2^11066155566 is an apocalyptic number.

11066155566 is an abundant number, since it is smaller than the sum of its proper divisors (11609344722).

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

11066155566 is a wasteful number, since it uses less digits than its factorization.

11066155566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267976.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 11066155566 in words is "eleven billion, sixty-six million, one hundred fifty-five thousand, five hundred sixty-six".