616046426646169 has 2 divisors, whose sum is σ = 616046426646170. Its totient is φ = 616046426646168.

The previous prime is 616046426646151. The next prime is 616046426646181. The reversal of 616046426646169 is 961646624640616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 518609529000000 + 97436897646169 = 22773000^2 + 9871013^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616046426646169 is a prime.

It is a super-2 number, since 2×616046426646169² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (616046426641169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308023213323084 + 308023213323085.

It is an arithmetic number, because the mean of its divisors is an integer number (308023213323085).

Almost surely, 2^{616046426646169} is an apocalyptic number.

It is an amenable number.

616046426646169 is a deficient number, since it is larger than the sum of its proper divisors (1).

616046426646169 is an equidigital number, since it uses as much as digits as its factorization.

616046426646169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322486272, while the sum is 67.

The spelling of 616046426646169 in words is "six hundred sixteen trillion, forty-six billion, four hundred twenty-six million, six hundred forty-six thousand, one hundred sixty-nine".