20105335524 has 48 divisors (see below), whose sum is σ = 47383273728. Its totient is φ = 6634604448.

The previous prime is 20105335513. The next prime is 20105335531. The reversal of 20105335524 is 42553350102.

It is a junction number, because it is equal to n+sod(n) for n = 20105335491 and 20105335500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2238667 + ... + 2247629.

It is an arithmetic number, because the mean of its divisors is an integer number (987151536).

Almost surely, 2^20105335524 is an apocalyptic number.

It is an amenable number.

20105335524 is an abundant number, since it is smaller than the sum of its proper divisors (27277938204).

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

20105335524 is a wasteful number, since it uses less digits than its factorization.

20105335524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10824 (or 10822 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 20105335524 its reverse (42553350102), we get a palindrome (62658685626).

The spelling of 20105335524 in words is "twenty billion, one hundred five million, three hundred thirty-five thousand, five hundred twenty-four".