2020155799 has 2 divisors, whose sum is σ = 2020155800. Its totient is φ = 2020155798.

The previous prime is 2020155769. The next prime is 2020155821. The reversal of 2020155799 is 9975510202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2020155799 - 2¹³ = 2020147607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020155719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010077899 + 1010077900.

It is an arithmetic number, because the mean of its divisors is an integer number (1010077900).

Almost surely, 2^2020155799 is an apocalyptic number.

2020155799 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020155799 is an equidigital number, since it uses as much as digits as its factorization.

2020155799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 2020155799 is about 44946.1433161957. The cubic root of 2020155799 is about 1264.1393634643.

The spelling of 2020155799 in words is "two billion, twenty million, one hundred fifty-five thousand, seven hundred ninety-nine".