20410540561020 has 48 divisors (see below), whose sum is σ = 57150242599968. Its totient is φ = 5442741384960.

The previous prime is 20410540561001. The next prime is 20410540561093. The reversal of 20410540561020 is 2016504501402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 2661862 + ... + 6921458.

It is an arithmetic number, because the mean of its divisors is an integer number (1190630054166).

Almost surely, 2^{20410540561020} is an apocalyptic number.

20410540561020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20410540561020 is an abundant number, since it is smaller than the sum of its proper divisors (36739702038948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20410540561020 is a wasteful number, since it uses less digits than its factorization.

20410540561020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4339470 (or 4339468 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 20410540561020 in words is "twenty trillion, four hundred ten billion, five hundred forty million, five hundred sixty-one thousand, twenty".