11600551666 has 8 divisors (see below), whose sum is σ = 18982720944. Its totient is φ = 5272978020.

The previous prime is 11600551619. The next prime is 11600551679. The reversal of 11600551666 is 66615500611.

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

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, 263648880 + ... + 263648923.

It is an arithmetic number, because the mean of its divisors is an integer number (2372840118).

Almost surely, 2^11600551666 is an apocalyptic number.

11600551666 is a deficient number, since it is larger than the sum of its proper divisors (7382169278).

11600551666 is a wasteful number, since it uses less digits than its factorization.

11600551666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527297816.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 11600551666 in words is "eleven billion, six hundred million, five hundred fifty-one thousand, six hundred sixty-six".