20310326551116 has 120 divisors (see below), whose sum is σ = 60698808025856. Its totient is φ = 5801174264160.

The previous prime is 20310326551111. The next prime is 20310326551129. The reversal of 20310326551116 is 61115562301302.

20310326551116 is a `hidden beast` number, since 2 + 0 + 3 + 103 + 26 + 5 + 511 + 16 = 666.

It is a super-2 number, since 2×20310326551116² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20310326551111) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6049755 + ... + 8787501.

Almost surely, 2^{20310326551116} 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 20310326551116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30349404012928).

20310326551116 is an abundant number, since it is smaller than the sum of its proper divisors (40388481474740).

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

20310326551116 is a wasteful number, since it uses less digits than its factorization.

20310326551116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741041 (or 2741030 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

Adding to 20310326551116 its reverse (61115562301302), we get a palindrome (81425888852418).

The spelling of 20310326551116 in words is "twenty trillion, three hundred ten billion, three hundred twenty-six million, five hundred fifty-one thousand, one hundred sixteen".