105645110646 has 16 divisors (see below), whose sum is σ = 211780459008. Its totient is φ = 35133330600.

The previous prime is 105645110629. The next prime is 105645110653. The reversal of 105645110646 is 646011546501.

It is a happy number.

It is a super-2 number, since 2×105645110646² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20423770 + ... + 20428941.

It is an arithmetic number, because the mean of its divisors is an integer number (13236278688).

Almost surely, 2^105645110646 is an apocalyptic number.

105645110646 is an abundant number, since it is smaller than the sum of its proper divisors (106135348362).

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

105645110646 is a wasteful number, since it uses less digits than its factorization.

105645110646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40853147.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 105645110646 in words is "one hundred five billion, six hundred forty-five million, one hundred ten thousand, six hundred forty-six".