2020661022535 has 8 divisors (see below), whose sum is σ = 2424816145296. Its totient is φ = 1616513539200.

The previous prime is 2020661022509. The next prime is 2020661022539. The reversal of 2020661022535 is 5352201660202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2020661022535 - 2¹⁹ = 2020660498247 is a prime.

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 2020661022535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020661022539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310866 + ... + 2399935.

It is an arithmetic number, because the mean of its divisors is an integer number (303102018162).

Almost surely, 2^{2020661022535} is an apocalyptic number.

2020661022535 is a deficient number, since it is larger than the sum of its proper divisors (404155122761).

2020661022535 is a wasteful number, since it uses less digits than its factorization.

2020661022535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819713.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 2020661022535 its reverse (5352201660202), we get a palindrome (7372862682737).

The spelling of 2020661022535 in words is "two trillion, twenty billion, six hundred sixty-one million, twenty-two thousand, five hundred thirty-five".