105999066606 has 32 divisors (see below), whose sum is σ = 217824888960. Its totient is φ = 34362747936.

The previous prime is 105999066601. The next prime is 105999066619. The reversal of 105999066606 is 606660999501.

It is a super-2 number, since 2×105999066606² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105999066601) 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, 397965 + ... + 608583.

It is an arithmetic number, because the mean of its divisors is an integer number (6807027780).

Almost surely, 2^105999066606 is an apocalyptic number.

105999066606 is an abundant number, since it is smaller than the sum of its proper divisors (111825822354).

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

105999066606 is a wasteful number, since it uses less digits than its factorization.

105999066606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212928.

The product of its (nonzero) digits is 4723920, while the sum is 57.

The spelling of 105999066606 in words is "one hundred five billion, nine hundred ninety-nine million, sixty-six thousand, six hundred six".