616420335277 has 2 divisors, whose sum is σ = 616420335278. Its totient is φ = 616420335276.

The previous prime is 616420335221. The next prime is 616420335319. The reversal of 616420335277 is 772533024616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 522481763241 + 93938572036 = 722829^2 + 306494^2 .

It is a cyclic number.

It is not a de Polignac number, because 616420335277 - 2³¹ = 614272851629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616420635277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308210167638 + 308210167639.

It is an arithmetic number, because the mean of its divisors is an integer number (308210167639).

Almost surely, 2^616420335277 is an apocalyptic number.

It is an amenable number.

616420335277 is a deficient number, since it is larger than the sum of its proper divisors (1).

616420335277 is an equidigital number, since it uses as much as digits as its factorization.

616420335277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 46.

The spelling of 616420335277 in words is "six hundred sixteen billion, four hundred twenty million, three hundred thirty-five thousand, two hundred seventy-seven".