40556716013 has 4 divisors (see below), whose sum is σ = 44243690208. Its totient is φ = 36869741820.

The previous prime is 40556715977. The next prime is 40556716027. The reversal of 40556716013 is 31061765504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40556716013 - 2¹² = 40556711917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40556716073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843487081 + ... + 1843487102.

It is an arithmetic number, because the mean of its divisors is an integer number (11060922552).

Almost surely, 2^40556716013 is an apocalyptic number.

It is an amenable number.

40556716013 is a deficient number, since it is larger than the sum of its proper divisors (3686974195).

40556716013 is a wasteful number, since it uses less digits than its factorization.

40556716013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686974194.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 40556716013 in words is "forty billion, five hundred fifty-six million, seven hundred sixteen thousand, thirteen".