20413334566445 has 4 divisors (see below), whose sum is σ = 24496001479740. Its totient is φ = 16330667653152.

The previous prime is 20413334566439. The next prime is 20413334566451. The reversal of 20413334566445 is 54466543331402.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20413334566439) and next prime (20413334566451).

It can be written as a sum of positive squares in 2 ways, for example, as 9486363040036 + 10926971526409 = 3079994^2 + 3305597^2 .

It is a cyclic number.

It is not a de Polignac number, because 20413334566445 - 2⁸ = 20413334566189 is a prime.

It is a super-2 number, since 2×20413334566445² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20413334566393 and 20413334566402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2041333456640 + ... + 2041333456649.

It is an arithmetic number, because the mean of its divisors is an integer number (6124000369935).

Almost surely, 2^{20413334566445} is an apocalyptic number.

It is an amenable number.

20413334566445 is a deficient number, since it is larger than the sum of its proper divisors (4082666913295).

20413334566445 is an equidigital number, since it uses as much as digits as its factorization.

20413334566445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082666913294.

The product of its (nonzero) digits is 12441600, while the sum is 50.

Adding to 20413334566445 its reverse (54466543331402), we get a palindrome (74879877897847).

The spelling of 20413334566445 in words is "twenty trillion, four hundred thirteen billion, three hundred thirty-four million, five hundred sixty-six thousand, four hundred forty-five".