11166166601201 has 16 divisors (see below), whose sum is σ = 11426042167296. Its totient is φ = 10909093090896.

The previous prime is 11166166601197. The next prime is 11166166601231. The reversal of 11166166601201 is 10210666166111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11166166601201 - 2² = 11166166601197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11166166601231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24338210 + ... + 24792756.

It is an arithmetic number, because the mean of its divisors is an integer number (714127635456).

Almost surely, 2^{11166166601201} is an apocalyptic number.

It is an amenable number.

11166166601201 is a deficient number, since it is larger than the sum of its proper divisors (259875566095).

11166166601201 is a wasteful number, since it uses less digits than its factorization.

11166166601201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457628.

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 11166166601201 in words is "eleven trillion, one hundred sixty-six billion, one hundred sixty-six million, six hundred one thousand, two hundred one".