166899842201 has 8 divisors (see below), whose sum is σ = 167323178400. Its totient is φ = 166476625920.

The previous prime is 166899842189. The next prime is 166899842227. The reversal of 166899842201 is 102248998661.

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 166899842201 - 2¹⁰ = 166899841177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166899842281) 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, 3192410 + ... + 3244268.

It is an arithmetic number, because the mean of its divisors is an integer number (20915397300).

Almost surely, 2^166899842201 is an apocalyptic number.

It is an amenable number.

166899842201 is a deficient number, since it is larger than the sum of its proper divisors (423336199).

166899842201 is an equidigital number, since it uses as much as digits as its factorization.

166899842201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59959.

The product of its (nonzero) digits is 2985984, while the sum is 56.

The spelling of 166899842201 in words is "one hundred sixty-six billion, eight hundred ninety-nine million, eight hundred forty-two thousand, two hundred one".