42221364616 has 8 divisors (see below), whose sum is σ = 79165058670. Its totient is φ = 21110682304.

The previous prime is 42221364599. The next prime is 42221364637. The reversal of 42221364616 is 61646312224.

It can be written as a sum of positive squares in only one way, i.e., 21529692900 + 20691671716 = 146730^2 + 143846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2638835281 + ... + 2638835296.

Almost surely, 2^42221364616 is an apocalyptic number.

It is an amenable number.

42221364616 is a deficient number, since it is larger than the sum of its proper divisors (36943694054).

42221364616 is a wasteful number, since it uses less digits than its factorization.

42221364616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5277670583 (or 5277670579 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The spelling of 42221364616 in words is "forty-two billion, two hundred twenty-one million, three hundred sixty-four thousand, six hundred sixteen".