104166443391 has 16 divisors (see below), whose sum is σ = 146210400000. Its totient is φ = 65783985408.

The previous prime is 104166443389. The next prime is 104166443419. The reversal of 104166443391 is 193344661401.

It is not a de Polignac number, because 104166443391 - 2¹ = 104166443389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104166443341) 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 15 ways as a sum of consecutive naturals, for example, 704110 + ... + 839108.

It is an arithmetic number, because the mean of its divisors is an integer number (9138150000).

Almost surely, 2^104166443391 is an apocalyptic number.

104166443391 is a deficient number, since it is larger than the sum of its proper divisors (42043956609).

104166443391 is a wasteful number, since it uses less digits than its factorization.

104166443391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148558.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 104166443391 in words is "one hundred four billion, one hundred sixty-six million, four hundred forty-three thousand, three hundred ninety-one".