11655606566 has 8 divisors (see below), whose sum is σ = 17513712120. Its totient is φ = 5817702528.

The previous prime is 11655606551. The next prime is 11655606577. The reversal of 11655606566 is 66560655611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11655606566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5048936 + ... + 5051243.

It is an arithmetic number, because the mean of its divisors is an integer number (2189214015).

Almost surely, 2^11655606566 is an apocalyptic number.

11655606566 is a deficient number, since it is larger than the sum of its proper divisors (5858105554).

11655606566 is a wasteful number, since it uses less digits than its factorization.

11655606566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100758.

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

The spelling of 11655606566 in words is "eleven billion, six hundred fifty-five million, six hundred six thousand, five hundred sixty-six".