105166613533 has 4 divisors (see below), whose sum is σ = 105173452188. Its totient is φ = 105159774880.

The previous prime is 105166613509. The next prime is 105166613551. The reversal of 105166613533 is 335316661501.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41925429049 + 63241184484 = 204757^2 + 251478^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105166613533 is a prime.

It is a super-2 number, since 2×105166613533² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105166613593) 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, 3396208 + ... + 3427033.

It is an arithmetic number, because the mean of its divisors is an integer number (26293363047).

Almost surely, 2^105166613533 is an apocalyptic number.

It is an amenable number.

105166613533 is a deficient number, since it is larger than the sum of its proper divisors (6838655).

105166613533 is an equidigital number, since it uses as much as digits as its factorization.

105166613533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6838654.

The product of its (nonzero) digits is 145800, while the sum is 40.

The spelling of 105166613533 in words is "one hundred five billion, one hundred sixty-six million, six hundred thirteen thousand, five hundred thirty-three".