620168639983 has 2 divisors, whose sum is σ = 620168639984. Its totient is φ = 620168639982.

The previous prime is 620168639897. The next prime is 620168640001. The reversal of 620168639983 is 389936861026.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620168639983 - 2¹³ = 620168631791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620168639483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310084319991 + 310084319992.

It is an arithmetic number, because the mean of its divisors is an integer number (310084319992).

Almost surely, 2^620168639983 is an apocalyptic number.

620168639983 is a deficient number, since it is larger than the sum of its proper divisors (1).

620168639983 is an equidigital number, since it uses as much as digits as its factorization.

620168639983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20155392, while the sum is 61.

The spelling of 620168639983 in words is "six hundred twenty billion, one hundred sixty-eight million, six hundred thirty-nine thousand, nine hundred eighty-three".