1966889160546 has 16 divisors (see below), whose sum is σ = 4140819285600. Its totient is φ = 621122892768.

The previous prime is 1966889160517. The next prime is 1966889160581. The reversal of 1966889160546 is 6450619886691.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8626706731 + ... + 8626706958.

It is an arithmetic number, because the mean of its divisors is an integer number (258801205350).

Almost surely, 2^{1966889160546} is an apocalyptic number.

1966889160546 is an abundant number, since it is smaller than the sum of its proper divisors (2173930125054).

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

1966889160546 is a wasteful number, since it uses less digits than its factorization.

1966889160546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17253413713.

The product of its (nonzero) digits is 134369280, while the sum is 69.

The spelling of 1966889160546 in words is "one trillion, nine hundred sixty-six billion, eight hundred eighty-nine million, one hundred sixty thousand, five hundred forty-six".