42466665642 has 16 divisors (see below), whose sum is σ = 85956625440. Its totient is φ = 13985006192.

The previous prime is 42466665623. The next prime is 42466665643. The reversal of 42466665642 is 24656666424.

It is not an unprimeable number, because it can be changed into a prime (42466665643) by changing a digit.

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, 42636717 + ... + 42637712.

It is an arithmetic number, because the mean of its divisors is an integer number (5372289090).

Almost surely, 2^42466665642 is an apocalyptic number.

42466665642 is an abundant number, since it is smaller than the sum of its proper divisors (43489959798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42466665642 is a wasteful number, since it uses less digits than its factorization.

42466665642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85274517.

The product of its digits is 9953280, while the sum is 51.

The spelling of 42466665642 in words is "forty-two billion, four hundred sixty-six million, six hundred sixty-five thousand, six hundred forty-two".