42602446666 has 8 divisors (see below), whose sum is σ = 68819336964. Its totient is φ = 19662667680.

The previous prime is 42602446643. The next prime is 42602446681. The reversal of 42602446666 is 66664420624.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42594768225 + 7678441 = 206385^2 + 2771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819277795 + ... + 819277846.

Almost surely, 2^42602446666 is an apocalyptic number.

42602446666 is a deficient number, since it is larger than the sum of its proper divisors (26216890298).

42602446666 is a wasteful number, since it uses less digits than its factorization.

42602446666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638555656.

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 42602446666 in words is "forty-two billion, six hundred two million, four hundred forty-six thousand, six hundred sixty-six".