106185165819 has 4 divisors (see below), whose sum is σ = 141580221096. Its totient is φ = 70790110544.

The previous prime is 106185165773. The next prime is 106185165851. The reversal of 106185165819 is 918561581601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 106185165819 - 2⁸ = 106185165563 is a prime.

It is a super-2 number, since 2×106185165819² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106185165019) 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 3 ways as a sum of consecutive naturals, for example, 17697527634 + ... + 17697527639.

It is an arithmetic number, because the mean of its divisors is an integer number (35395055274).

Almost surely, 2^106185165819 is an apocalyptic number.

106185165819 is a deficient number, since it is larger than the sum of its proper divisors (35395055277).

106185165819 is an equidigital number, since it uses as much as digits as its factorization.

106185165819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35395055276.

The product of its (nonzero) digits is 518400, while the sum is 51.

The spelling of 106185165819 in words is "one hundred six billion, one hundred eighty-five million, one hundred sixty-five thousand, eight hundred nineteen".