40564644004003 has 4 divisors (see below), whose sum is σ = 46359593147440. Its totient is φ = 34769694860568.

The previous prime is 40564644003991. The next prime is 40564644004039. The reversal of 40564644004003 is 30040044646504.

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

It is a cyclic number.

It is not a de Polignac number, because 40564644004003 - 2²⁹ = 40564107133091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40564644004063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2897474571708 + ... + 2897474571721.

It is an arithmetic number, because the mean of its divisors is an integer number (11589898286860).

Almost surely, 2^{40564644004003} is an apocalyptic number.

40564644004003 is a deficient number, since it is larger than the sum of its proper divisors (5794949143437).

40564644004003 is an equidigital number, since it uses as much as digits as its factorization.

40564644004003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5794949143436.

The product of its (nonzero) digits is 552960, while the sum is 40.

The spelling of 40564644004003 in words is "forty trillion, five hundred sixty-four billion, six hundred forty-four million, four thousand, three".