40425560566 has 16 divisors (see below), whose sum is σ = 62314988256. Its totient is φ = 19654560576.

The previous prime is 40425560543. The next prime is 40425560573. The reversal of 40425560566 is 66506552404.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42226 + ... + 287461.

It is an arithmetic number, because the mean of its divisors is an integer number (3894686766).

Almost surely, 2^40425560566 is an apocalyptic number.

40425560566 is a deficient number, since it is larger than the sum of its proper divisors (21889427690).

40425560566 is a wasteful number, since it uses less digits than its factorization.

40425560566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331383.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 40425560566 in words is "forty billion, four hundred twenty-five million, five hundred sixty thousand, five hundred sixty-six".