20413154065420 has 24 divisors (see below), whose sum is σ = 44250450104448. Its totient is φ = 7901866089600.

The previous prime is 20413154065397. The next prime is 20413154065439. The reversal of 20413154065420 is 2456045131402.

It is a self number, because there is not a number n which added to its sum of digits gives 20413154065420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16462220401 + ... + 16462221640.

It is an arithmetic number, because the mean of its divisors is an integer number (1843768754352).

Almost surely, 2^{20413154065420} is an apocalyptic number.

20413154065420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20413154065420 is an abundant number, since it is smaller than the sum of its proper divisors (23837296039028).

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

20413154065420 is a wasteful number, since it uses less digits than its factorization.

20413154065420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32924442081 (or 32924442079 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 20413154065420 its reverse (2456045131402), we get a palindrome (22869199196822).

The spelling of 20413154065420 in words is "twenty trillion, four hundred thirteen billion, one hundred fifty-four million, sixty-five thousand, four hundred twenty".