20445014234136 has 64 divisors (see below), whose sum is σ = 53836658726400. Its totient is φ = 6452241522048.

The previous prime is 20445014234111. The next prime is 20445014234167. The reversal of 20445014234136 is 63143241054402.

It is a junction number, because it is equal to n+sod(n) for n = 20445014234094 and 20445014234103.

It is a congruent number.

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, 13439731 + ... + 14883426.

It is an arithmetic number, because the mean of its divisors is an integer number (841197792600).

Almost surely, 2^{20445014234136} is an apocalyptic number.

It is an amenable number.

20445014234136 is an abundant number, since it is smaller than the sum of its proper divisors (33391644492264).

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

20445014234136 is a wasteful number, since it uses less digits than its factorization.

20445014234136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28324768 (or 28324764 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

Adding to 20445014234136 its reverse (63143241054402), we get a palindrome (83588255288538).

The spelling of 20445014234136 in words is "twenty trillion, four hundred forty-five billion, fourteen million, two hundred thirty-four thousand, one hundred thirty-six".