2020990957399 has 16 divisors (see below), whose sum is σ = 2105980010496. Its totient is φ = 1937792656800.

The previous prime is 2020990957397. The next prime is 2020990957417. The reversal of 2020990957399 is 9937590990202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2020990957399 - 2¹ = 2020990957397 is a prime.

It is a super-3 number, since 3×2020990957399³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020990957399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020990957397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580167 + ... + 2092504.

It is an arithmetic number, because the mean of its divisors is an integer number (131623750656).

Almost surely, 2^{2020990957399} is an apocalyptic number.

2020990957399 is a deficient number, since it is larger than the sum of its proper divisors (84989053097).

2020990957399 is a wasteful number, since it uses less digits than its factorization.

2020990957399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673006.

The product of its (nonzero) digits is 24800580, while the sum is 64.

The spelling of 2020990957399 in words is "two trillion, twenty billion, nine hundred ninety million, nine hundred fifty-seven thousand, three hundred ninety-nine".