1693042443966 has 64 divisors (see below), whose sum is σ = 3861829840896. Its totient is φ = 491668108800.

The previous prime is 1693042443959. The next prime is 1693042443971. The reversal of 1693042443966 is 6693442403961.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 11567145 + ... + 11712596.

It is an arithmetic number, because the mean of its divisors is an integer number (60341091264).

Almost surely, 2^{1693042443966} is an apocalyptic number.

1693042443966 is an abundant number, since it is smaller than the sum of its proper divisors (2168787396930).

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

1693042443966 is a wasteful number, since it uses less digits than its factorization.

1693042443966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23279817.

The product of its (nonzero) digits is 20155392, while the sum is 57.

The spelling of 1693042443966 in words is "one trillion, six hundred ninety-three billion, forty-two million, four hundred forty-three thousand, nine hundred sixty-six".