105405044520345 has 8 divisors (see below), whose sum is σ = 168648071232576. Its totient is φ = 56216023744176.

The previous prime is 105405044520317. The next prime is 105405044520401. The reversal of 105405044520345 is 543025440504501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105405044520345 - 2¹⁰ = 105405044519321 is a prime.

It is a super-2 number, since 2×105405044520345² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105405044520297 and 105405044520306.

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, 3513501483997 + ... + 3513501484026.

It is an arithmetic number, because the mean of its divisors is an integer number (21081008904072).

Almost surely, 2^{105405044520345} is an apocalyptic number.

105405044520345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105405044520345 is a deficient number, since it is larger than the sum of its proper divisors (63243026712231).

105405044520345 is an equidigital number, since it uses as much as digits as its factorization.

105405044520345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027002968031.

The product of its (nonzero) digits is 960000, while the sum is 42.

The spelling of 105405044520345 in words is "one hundred five trillion, four hundred five billion, forty-four million, five hundred twenty thousand, three hundred forty-five".