11201734566 has 64 divisors (see below), whose sum is σ = 27733570560. Its totient is φ = 3322234080.

The previous prime is 11201734553. The next prime is 11201734627. The reversal of 11201734566 is 66543710211.

11201734566 is a `hidden beast` number, since 1 + 1 + 20 + 1 + 73 + 4 + 566 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 11201734566.

It is a congruent number.

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, 172701 + ... + 228536.

It is an arithmetic number, because the mean of its divisors is an integer number (433337040).

Almost surely, 2^11201734566 is an apocalyptic number.

11201734566 is an abundant number, since it is smaller than the sum of its proper divisors (16531835994).

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

11201734566 is a wasteful number, since it uses less digits than its factorization.

11201734566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401306 (or 401300 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 11201734566 in words is "eleven billion, two hundred one million, seven hundred thirty-four thousand, five hundred sixty-six".