20803180154896 has 80 divisors (see below), whose sum is σ = 41856607166400. Its totient is φ = 10004260299264.

The previous prime is 20803180154881. The next prime is 20803180154899. The reversal of 20803180154896 is 69845108130802.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20803180154899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444992995 + ... + 445039741.

It is an arithmetic number, because the mean of its divisors is an integer number (523207589580).

Almost surely, 2^{20803180154896} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20803180154896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20928303583200).

20803180154896 is an abundant number, since it is smaller than the sum of its proper divisors (21053427011504).

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

20803180154896 is a wasteful number, since it uses less digits than its factorization.

20803180154896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50456 (or 50450 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 55.

The spelling of 20803180154896 in words is "twenty trillion, eight hundred three billion, one hundred eighty million, one hundred fifty-four thousand, eight hundred ninety-six".