616321304556212 has 12 divisors (see below), whose sum is σ = 1078573574295840. Its totient is φ = 308157426185976.

The previous prime is 616321304556211. The next prime is 616321304556227. The reversal of 616321304556212 is 212655403123616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616321304556211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806093162 + ... + 806857377.

It is an arithmetic number, because the mean of its divisors is an integer number (89881131191320).

Almost surely, 2^{616321304556212} is an apocalyptic number.

It is an amenable number.

616321304556212 is a deficient number, since it is larger than the sum of its proper divisors (462252269739628).

616321304556212 is a wasteful number, since it uses less digits than its factorization.

616321304556212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613046070 (or 1613046068 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

Adding to 616321304556212 its reverse (212655403123616), we get a palindrome (828976707679828).

The spelling of 616321304556212 in words is "six hundred sixteen trillion, three hundred twenty-one billion, three hundred four million, five hundred fifty-six thousand, two hundred twelve".