8446668066842 has 8 divisors (see below), whose sum is σ = 13106898724500. Its totient is φ = 4077701825344.

The previous prime is 8446668066839. The next prime is 8446668066877. The reversal of 8446668066842 is 2486608666448.

It can be written as a sum of positive squares in 2 ways, for example, as 8059869898081 + 386798168761 = 2838991^2 + 621931^2 .

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, 72816103967 + ... + 72816104082.

Almost surely, 2^{8446668066842} is an apocalyptic number.

8446668066842 is a deficient number, since it is larger than the sum of its proper divisors (4660230657658).

8446668066842 is a wasteful number, since it uses less digits than its factorization.

8446668066842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145632208080.

The product of its (nonzero) digits is 509607936, while the sum is 68.

The spelling of 8446668066842 in words is "eight trillion, four hundred forty-six billion, six hundred sixty-eight million, sixty-six thousand, eight hundred forty-two".