42454005566 has 16 divisors (see below), whose sum is σ = 73041039456. Its totient is φ = 18128887776.

The previous prime is 42454005551. The next prime is 42454005623. The reversal of 42454005566 is 66550045424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5469821 + ... + 5477576.

It is an arithmetic number, because the mean of its divisors is an integer number (4565064966).

Almost surely, 2^42454005566 is an apocalyptic number.

42454005566 is a deficient number, since it is larger than the sum of its proper divisors (30587033890).

42454005566 is a wasteful number, since it uses less digits than its factorization.

42454005566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10947683.

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 42454005566 in words is "forty-two billion, four hundred fifty-four million, five thousand, five hundred sixty-six".