442221456064 has 14 divisors (see below), whose sum is σ = 877533202004. Its totient is φ = 221110728000.

The previous prime is 442221456023. The next prime is 442221456071. The reversal of 442221456064 is 460654122244.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3454855062 + ... + 3454855189.

Almost surely, 2^442221456064 is an apocalyptic number.

It is an amenable number.

442221456064 is a deficient number, since it is larger than the sum of its proper divisors (435311745940).

442221456064 is an equidigital number, since it uses as much as digits as its factorization.

442221456064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6909710263 (or 6909710253 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 40.

The spelling of 442221456064 in words is "four hundred forty-two billion, two hundred twenty-one million, four hundred fifty-six thousand, sixty-four".