166017280211 has 8 divisors (see below), whose sum is σ = 167895786240. Its totient is φ = 164139066432.

The previous prime is 166017280199. The next prime is 166017280271. The reversal of 166017280211 is 112082710661.

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

It is a cyclic number.

It is not a de Polignac number, because 166017280211 - 2¹⁴ = 166017263827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166017280271) 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, 1192781 + ... + 1324673.

It is an arithmetic number, because the mean of its divisors is an integer number (20986973280).

Almost surely, 2^166017280211 is an apocalyptic number.

166017280211 is a deficient number, since it is larger than the sum of its proper divisors (1878506029).

166017280211 is a wasteful number, since it uses less digits than its factorization.

166017280211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146125.

The product of its (nonzero) digits is 8064, while the sum is 35.

Adding to 166017280211 its reverse (112082710661), we get a palindrome (278099990872).

The spelling of 166017280211 in words is "one hundred sixty-six billion, seventeen million, two hundred eighty thousand, two hundred eleven".