20950451913108 has 24 divisors (see below), whose sum is σ = 50205587468512. Its totient is φ = 6794741160864.

The previous prime is 20950451913103. The next prime is 20950451913109. The reversal of 20950451913108 is 80131915405902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20950451913103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23592850810 + ... + 23592851697.

Almost surely, 2^{20950451913108} is an apocalyptic number.

It is an amenable number.

20950451913108 is an abundant number, since it is smaller than the sum of its proper divisors (29255135555404).

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

20950451913108 is a wasteful number, since it uses less digits than its factorization.

20950451913108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47185702551 (or 47185702549 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 48.

The spelling of 20950451913108 in words is "twenty trillion, nine hundred fifty billion, four hundred fifty-one million, nine hundred thirteen thousand, one hundred eight".