2166747673146 has 16 divisors (see below), whose sum is σ = 4952566110144. Its totient is φ = 619070763744.

The previous prime is 2166747673127. The next prime is 2166747673169. The reversal of 2166747673146 is 6413767476612.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2166747673146.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25794615115 + ... + 25794615198.

It is an arithmetic number, because the mean of its divisors is an integer number (309535381884).

Almost surely, 2^{2166747673146} is an apocalyptic number.

2166747673146 is an abundant number, since it is smaller than the sum of its proper divisors (2785818436998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2166747673146 is a wasteful number, since it uses less digits than its factorization.

2166747673146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51589230325.

The product of its digits is 42674688, while the sum is 60.

The spelling of 2166747673146 in words is "two trillion, one hundred sixty-six billion, seven hundred forty-seven million, six hundred seventy-three thousand, one hundred forty-six".