20413515116412 has 144 divisors (see below), whose sum is σ = 57711509856000. Its totient is φ = 6030455558400.

The previous prime is 20413515116311. The next prime is 20413515116507. The reversal of 20413515116412 is 21461151531402.

20413515116412 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 3 + 5 + 1 + 5 + 1 + 1 + 641 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7721089 + ... + 10022087.

It is an arithmetic number, because the mean of its divisors is an integer number (400774374000).

Almost surely, 2^{20413515116412} is an apocalyptic number.

20413515116412 is a gapful number since it is divisible by the number (22) 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 20413515116412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28855754928000).

20413515116412 is an abundant number, since it is smaller than the sum of its proper divisors (37297994739588).

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

20413515116412 is a wasteful number, since it uses less digits than its factorization.

20413515116412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301584 (or 2301579 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

Adding to 20413515116412 its reverse (21461151531402), we get a palindrome (41874666647814).

The spelling of 20413515116412 in words is "twenty trillion, four hundred thirteen billion, five hundred fifteen million, one hundred sixteen thousand, four hundred twelve".