40808588406365 has 32 divisors (see below), whose sum is σ = 53233343130240. Its totient is φ = 29852126809344.

The previous prime is 40808588406359. The next prime is 40808588406367. The reversal of 40808588406365 is 56360488580804.

It is a cyclic number.

It is not a de Polignac number, because 40808588406365 - 2⁶ = 40808588406301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40808588406367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120771782 + ... + 121109208.

It is an arithmetic number, because the mean of its divisors is an integer number (1663541972820).

Almost surely, 2^{40808588406365} is an apocalyptic number.

It is an amenable number.

40808588406365 is a deficient number, since it is larger than the sum of its proper divisors (12424754723875).

40808588406365 is a wasteful number, since it uses less digits than its factorization.

40808588406365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354941.

The product of its (nonzero) digits is 176947200, while the sum is 65.

The spelling of 40808588406365 in words is "forty trillion, eight hundred eight billion, five hundred eighty-eight million, four hundred six thousand, three hundred sixty-five".