616636225033643 has 2 divisors, whose sum is σ = 616636225033644. Its totient is φ = 616636225033642.

The previous prime is 616636225033583. The next prime is 616636225033667. The reversal of 616636225033643 is 346330522636616.

616636225033643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 616636225033643 - 2¹² = 616636225029547 is a prime.

It is a super-2 number, since 2×616636225033643² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (616636225032643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308318112516821 + 308318112516822.

It is an arithmetic number, because the mean of its divisors is an integer number (308318112516822).

Almost surely, 2^{616636225033643} is an apocalyptic number.

616636225033643 is a deficient number, since it is larger than the sum of its proper divisors (1).

616636225033643 is an equidigital number, since it uses as much as digits as its factorization.

616636225033643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50388480, while the sum is 56.

The spelling of 616636225033643 in words is "six hundred sixteen trillion, six hundred thirty-six billion, two hundred twenty-five million, thirty-three thousand, six hundred forty-three".