166284780167 has 8 divisors (see below), whose sum is σ = 181437201552. Its totient is φ = 151138296000.

The previous prime is 166284780163. The next prime is 166284780191. The reversal of 166284780167 is 761087482661.

It is a happy number.

166284780167 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 166284780167 - 2² = 166284780163 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 (166284780163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1425638 + ... + 1537859.

It is an arithmetic number, because the mean of its divisors is an integer number (22679650194).

Almost surely, 2^166284780167 is an apocalyptic number.

166284780167 is a deficient number, since it is larger than the sum of its proper divisors (15152421385).

166284780167 is a wasteful number, since it uses less digits than its factorization.

166284780167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968609.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 166284780167 in words is "one hundred sixty-six billion, two hundred eighty-four million, seven hundred eighty thousand, one hundred sixty-seven".