616636225033667 has 2 divisors, whose sum is σ = 616636225033668. Its totient is φ = 616636225033666.

The previous prime is 616636225033643. The next prime is 616636225033669. The reversal of 616636225033667 is 766330522636616.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 616636225033667 - 2¹⁰ = 616636225032643 is a prime.

Together with 616636225033669, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (616636225033669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308318112516833 + 308318112516834.

It is an arithmetic number, because the mean of its divisors is an integer number (308318112516834).

Almost surely, 2^{616636225033667} is an apocalyptic number.

616636225033667 is a deficient number, since it is larger than the sum of its proper divisors (1).

616636225033667 is an equidigital number, since it uses as much as digits as its factorization.

616636225033667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176359680, while the sum is 62.

The spelling of 616636225033667 in words is "six hundred sixteen trillion, six hundred thirty-six billion, two hundred twenty-five million, thirty-three thousand, six hundred sixty-seven".