65843500105 has 16 divisors (see below), whose sum is σ = 84084667920. Its totient is φ = 49324613632.

The previous prime is 65843500103. The next prime is 65843500141. The reversal of 65843500105 is 50100534856.

It can be written as a sum of positive squares in 8 ways, for example, as 6956227216 + 58887272889 = 83404^2 + 242667^2 .

It is a cyclic number.

It is not a de Polignac number, because 65843500105 - 2¹ = 65843500103 is a prime.

It is a super-2 number, since 2×65843500105² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65843500103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1949320 + ... + 1982809.

It is an arithmetic number, because the mean of its divisors is an integer number (5255291745).

Almost surely, 2^65843500105 is an apocalyptic number.

It is an amenable number.

65843500105 is a deficient number, since it is larger than the sum of its proper divisors (18241167815).

65843500105 is a wasteful number, since it uses less digits than its factorization.

65843500105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3932348.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 65843500105 in words is "sixty-five billion, eight hundred forty-three million, five hundred thousand, one hundred five".