11606666217 has 8 divisors (see below), whose sum is σ = 15476902080. Its totient is φ = 7737103920.

The previous prime is 11606666191. The next prime is 11606666257. The reversal of 11606666217 is 71266660611.

It is a happy number.

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

It is not a de Polignac number, because 11606666217 - 2¹⁰ = 11606665193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11606666257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126709 + ... + 198162.

It is an arithmetic number, because the mean of its divisors is an integer number (1934612760).

Almost surely, 2^11606666217 is an apocalyptic number.

It is an amenable number.

11606666217 is a deficient number, since it is larger than the sum of its proper divisors (3870235863).

11606666217 is a wasteful number, since it uses less digits than its factorization.

11606666217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336783.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 11606666217 in words is "eleven billion, six hundred six million, six hundred sixty-six thousand, two hundred seventeen".