320199986629 has 2 divisors, whose sum is σ = 320199986630. Its totient is φ = 320199986628.

The previous prime is 320199986591. The next prime is 320199986633. The reversal of 320199986629 is 926689991023.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251672788900 + 68527197729 = 501670^2 + 261777^2 .

It is a cyclic number.

It is not a de Polignac number, because 320199986629 - 2⁷ = 320199986501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320199986429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160099993314 + 160099993315.

It is an arithmetic number, because the mean of its divisors is an integer number (160099993315).

Almost surely, 2^320199986629 is an apocalyptic number.

It is an amenable number.

320199986629 is a deficient number, since it is larger than the sum of its proper divisors (1).

320199986629 is an equidigital number, since it uses as much as digits as its factorization.

320199986629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22674816, while the sum is 64.

The spelling of 320199986629 in words is "three hundred twenty billion, one hundred ninety-nine million, nine hundred eighty-six thousand, six hundred twenty-nine".