42406413566 has 16 divisors (see below), whose sum is σ = 69397010928. Its totient is φ = 19274337600.

The previous prime is 42406413547. The next prime is 42406413571. The reversal of 42406413566 is 66531460424.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 316826 + ... + 430338.

It is an arithmetic number, because the mean of its divisors is an integer number (4337313183).

Almost surely, 2^42406413566 is an apocalyptic number.

42406413566 is a deficient number, since it is larger than the sum of its proper divisors (26990597362).

42406413566 is a wasteful number, since it uses less digits than its factorization.

42406413566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130507.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 42406413566 in words is "forty-two billion, four hundred six million, four hundred thirteen thousand, five hundred sixty-six".