620420216411 has 2 divisors, whose sum is σ = 620420216412. Its totient is φ = 620420216410.

The previous prime is 620420216387. The next prime is 620420216431. The reversal of 620420216411 is 114612024026.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620420216411 - 2⁶ = 620420216347 is a prime.

It is not a weakly prime, because it can be changed into another prime (620420216431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310210108205 + 310210108206.

It is an arithmetic number, because the mean of its divisors is an integer number (310210108206).

Almost surely, 2^620420216411 is an apocalyptic number.

620420216411 is a deficient number, since it is larger than the sum of its proper divisors (1).

620420216411 is an equidigital number, since it uses as much as digits as its factorization.

620420216411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 620420216411 in words is "six hundred twenty billion, four hundred twenty million, two hundred sixteen thousand, four hundred eleven".