20114415235640 has 128 divisors (see below), whose sum is σ = 49479228976320. Its totient is φ = 7298425344000.

The previous prime is 20114415235633. The next prime is 20114415235661. The reversal of 20114415235640 is 4653251441102.

It is a junction number, because it is equal to n+sod(n) for n = 20114415235594 and 20114415235603.

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 31 ways as a sum of consecutive naturals, for example, 423464372 + ... + 423511868.

Almost surely, 2^{20114415235640} is an apocalyptic number.

20114415235640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20114415235640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24739614488160).

20114415235640 is an abundant number, since it is smaller than the sum of its proper divisors (29364813740680).

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

20114415235640 is a wasteful number, since it uses less digits than its factorization.

20114415235640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49593 (or 49589 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

Adding to 20114415235640 its reverse (4653251441102), we get a palindrome (24767666676742).

The spelling of 20114415235640 in words is "twenty trillion, one hundred fourteen billion, four hundred fifteen million, two hundred thirty-five thousand, six hundred forty".