40563566441 has 4 divisors (see below), whose sum is σ = 40855390800. Its totient is φ = 40271742084.

The previous prime is 40563566387. The next prime is 40563566479. The reversal of 40563566441 is 14466536504.

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 40563566441 - 2²² = 40559372137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40563566392 and 40563566401.

It is not an unprimeable number, because it can be changed into a prime (40563566041) 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, 145911971 + ... + 145912248.

It is an arithmetic number, because the mean of its divisors is an integer number (10213847700).

Almost surely, 2^40563566441 is an apocalyptic number.

It is an amenable number.

40563566441 is a deficient number, since it is larger than the sum of its proper divisors (291824359).

40563566441 is a wasteful number, since it uses less digits than its factorization.

40563566441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291824358.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 40563566441 in words is "forty billion, five hundred sixty-three million, five hundred sixty-six thousand, four hundred forty-one".