11566500606 has 12 divisors (see below), whose sum is σ = 25060751352. Its totient is φ = 3855500196.

The previous prime is 11566500601. The next prime is 11566500677. The reversal of 11566500606 is 60600566511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11566500601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 321291666 + ... + 321291701.

It is an arithmetic number, because the mean of its divisors is an integer number (2088395946).

Almost surely, 2^11566500606 is an apocalyptic number.

11566500606 is an abundant number, since it is smaller than the sum of its proper divisors (13494250746).

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

11566500606 is a wasteful number, since it uses less digits than its factorization.

11566500606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642583375 (or 642583372 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 11566500606 in words is "eleven billion, five hundred sixty-six million, five hundred thousand, six hundred six".