40405586505 has 16 divisors (see below), whose sum is σ = 65534542080. Its totient is φ = 21254444928.

The previous prime is 40405586503. The next prime is 40405586509. The reversal of 40405586505 is 50568550404.

It is not a de Polignac number, because 40405586505 - 2¹ = 40405586503 is a prime.

It is a super-3 number, since 3×40405586505³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (40405586503) 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, 18448945 + ... + 18451134.

It is an arithmetic number, because the mean of its divisors is an integer number (4095908880).

Almost surely, 2^40405586505 is an apocalyptic number.

It is an amenable number.

40405586505 is a deficient number, since it is larger than the sum of its proper divisors (25128955575).

40405586505 is a wasteful number, since it uses less digits than its factorization.

40405586505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36900160.

The product of its (nonzero) digits is 480000, while the sum is 42.

The spelling of 40405586505 in words is "forty billion, four hundred five million, five hundred eighty-six thousand, five hundred five".