40065204265 has 4 divisors (see below), whose sum is σ = 48078245124. Its totient is φ = 32052163408.

The previous prime is 40065204217. The next prime is 40065204313. The reversal of 40065204265 is 56240256004.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (40065204217) and next prime (40065204313).

It can be written as a sum of positive squares in 2 ways, for example, as 30915133929 + 9150070336 = 175827^2 + 95656^2 .

It is a cyclic number.

It is not a de Polignac number, because 40065204265 - 2⁹ = 40065203753 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40065204265.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4006520422 + ... + 4006520431.

It is an arithmetic number, because the mean of its divisors is an integer number (12019561281).

Almost surely, 2^40065204265 is an apocalyptic number.

It is an amenable number.

40065204265 is a deficient number, since it is larger than the sum of its proper divisors (8013040859).

40065204265 is an equidigital number, since it uses as much as digits as its factorization.

40065204265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8013040858.

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 40065204265 in words is "forty billion, sixty-five million, two hundred four thousand, two hundred sixty-five".