20413323235545 has 8 divisors (see below), whose sum is σ = 32661317176896. Its totient is φ = 10887105725616.

The previous prime is 20413323235541. The next prime is 20413323235559. The reversal of 20413323235545 is 54553232331402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20413323235545 - 2² = 20413323235541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20413323235497 and 20413323235506.

It is not an unprimeable number, because it can be changed into a prime (20413323235541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680444107837 + ... + 680444107866.

It is an arithmetic number, because the mean of its divisors is an integer number (4082664647112).

Almost surely, 2^{20413323235545} is an apocalyptic number.

It is an amenable number.

20413323235545 is a deficient number, since it is larger than the sum of its proper divisors (12247993941351).

20413323235545 is a wasteful number, since it uses less digits than its factorization.

20413323235545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360888215711.

The product of its (nonzero) digits is 1296000, while the sum is 42.

Adding to 20413323235545 its reverse (54553232331402), we get a palindrome (74966555566947).

The spelling of 20413323235545 in words is "twenty trillion, four hundred thirteen billion, three hundred twenty-three million, two hundred thirty-five thousand, five hundred forty-five".