40108585550805 has 12 divisors (see below), whose sum is σ = 69521548288140. Its totient is φ = 21391245627072.

The previous prime is 40108585550783. The next prime is 40108585550809. The reversal of 40108585550805 is 50805558580104.

40108585550805 is a `hidden beast` number, since 4 + 0 + 1 + 0 + 8 + 5 + 8 + 5 + 550 + 80 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 27952770813444 + 12155814737361 = 5287038^2 + 3486519^2 .

It is not a de Polignac number, because 40108585550805 - 2⁵ = 40108585550773 is a prime.

It is a super-2 number, since 2×40108585550805² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40108585550809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 445650950520 + ... + 445650950609.

It is an arithmetic number, because the mean of its divisors is an integer number (5793462357345).

Almost surely, 2^{40108585550805} is an apocalyptic number.

40108585550805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40108585550805 is a deficient number, since it is larger than the sum of its proper divisors (29412962737335).

40108585550805 is a wasteful number, since it uses less digits than its factorization.

40108585550805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891301901140 (or 891301901137 counting only the distinct ones).

The product of its (nonzero) digits is 6400000, while the sum is 54.

The spelling of 40108585550805 in words is "forty trillion, one hundred eight billion, five hundred eighty-five million, five hundred fifty thousand, eight hundred five".