616222351616 has 36 divisors (see below), whose sum is σ = 1230250448364. Its totient is φ = 308057856000.

The previous prime is 616222351601. The next prime is 616222351639. The reversal of 616222351616 is 616153222616.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 251522310400 + 364700041216 = 501520^2 + 603904^2 .

It is a super-2 number, since 2×616222351616² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1295066 + ... + 1705766.

Almost surely, 2^616222351616 is an apocalyptic number.

It is an amenable number.

616222351616 is a deficient number, since it is larger than the sum of its proper divisors (614028096748).

616222351616 is an equidigital number, since it uses as much as digits as its factorization.

616222351616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416578 (or 416564 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The spelling of 616222351616 in words is "six hundred sixteen billion, two hundred twenty-two million, three hundred fifty-one thousand, six hundred sixteen".