166620116285 has 8 divisors (see below), whose sum is σ = 228507588096. Its totient is φ = 114253794000.

The previous prime is 166620116281. The next prime is 166620116317. The reversal of 166620116285 is 582611026661.

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

It is not a de Polignac number, because 166620116285 - 2² = 166620116281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166620116281) 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, 2380287341 + ... + 2380287410.

It is an arithmetic number, because the mean of its divisors is an integer number (28563448512).

Almost surely, 2^166620116285 is an apocalyptic number.

It is an amenable number.

166620116285 is a deficient number, since it is larger than the sum of its proper divisors (61887471811).

166620116285 is an equidigital number, since it uses as much as digits as its factorization.

166620116285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760574763.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 166620116285 in words is "one hundred sixty-six billion, six hundred twenty million, one hundred sixteen thousand, two hundred eighty-five".