20443340035525 has 12 divisors (see below), whose sum is σ = 27654263612064. Its totient is φ = 14867883662000.

The previous prime is 20443340035421. The next prime is 20443340035607. The reversal of 20443340035525 is 52553004334402.

It is not a de Polignac number, because 20443340035525 - 2³⁵ = 20408980297157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37169708881 + ... + 37169709430.

It is an arithmetic number, because the mean of its divisors is an integer number (2304521967672).

Almost surely, 2^{20443340035525} is an apocalyptic number.

20443340035525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20443340035525 is a deficient number, since it is larger than the sum of its proper divisors (7210923576539).

20443340035525 is a wasteful number, since it uses less digits than its factorization.

20443340035525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74339418332 (or 74339418327 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 40.

Adding to 20443340035525 its reverse (52553004334402), we get a palindrome (72996344369927).

The spelling of 20443340035525 in words is "twenty trillion, four hundred forty-three billion, three hundred forty million, thirty-five thousand, five hundred twenty-five".