83405566105 has 8 divisors (see below), whose sum is σ = 100180312200. Its totient is φ = 66662030976.

The previous prime is 83405566091. The next prime is 83405566121. The reversal of 83405566105 is 50166550438.

It can be written as a sum of positive squares in 4 ways, for example, as 31169549401 + 52236016704 = 176549^2 + 228552^2 .

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 83405566105 - 2¹⁷ = 83405435033 is a prime.

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, 7796860 + ... + 7807549.

It is an arithmetic number, because the mean of its divisors is an integer number (12522539025).

Almost surely, 2^83405566105 is an apocalyptic number.

It is an amenable number.

83405566105 is a deficient number, since it is larger than the sum of its proper divisors (16774746095).

83405566105 is a wasteful number, since it uses less digits than its factorization.

83405566105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15605483.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 83405566105 in words is "eighty-three billion, four hundred five million, five hundred sixty-six thousand, one hundred five".