166355804159 has 8 divisors (see below), whose sum is σ = 169540811520. Its totient is φ = 163182977496.

The previous prime is 166355804107. The next prime is 166355804177. The reversal of 166355804159 is 951408553661.

It is a happy number.

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 166355804159 - 2⁸ = 166355803903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166355804159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166355804059) 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, 3017597 + ... + 3072230.

It is an arithmetic number, because the mean of its divisors is an integer number (21192601440).

Almost surely, 2^166355804159 is an apocalyptic number.

166355804159 is a deficient number, since it is larger than the sum of its proper divisors (3185007361).

166355804159 is an equidigital number, since it uses as much as digits as its factorization.

166355804159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6090349.

The product of its (nonzero) digits is 3888000, while the sum is 53.

The spelling of 166355804159 in words is "one hundred sixty-six billion, three hundred fifty-five million, eight hundred four thousand, one hundred fifty-nine".