42420626066 has 16 divisors (see below), whose sum is σ = 78315002304. Its totient is φ = 16781786064.

The previous prime is 42420626047. The next prime is 42420626069. The reversal of 42420626066 is 66062602424.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42420626069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116540000 + ... + 116540363.

It is an arithmetic number, because the mean of its divisors is an integer number (4894687644).

Almost surely, 2^42420626066 is an apocalyptic number.

42420626066 is a deficient number, since it is larger than the sum of its proper divisors (35894376238).

42420626066 is a wasteful number, since it uses less digits than its factorization.

42420626066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233080385.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 42420626066 in words is "forty-two billion, four hundred twenty million, six hundred twenty-six thousand, sixty-six".