20411202445015 has 4 divisors (see below), whose sum is σ = 24493442934024. Its totient is φ = 16328961956008.

The previous prime is 20411202445009. The next prime is 20411202445031. The reversal of 20411202445015 is 51054420211402.

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

It is a cyclic number.

It is not a de Polignac number, because 20411202445015 - 2²⁷ = 20411068227287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2041120244497 + ... + 2041120244506.

It is an arithmetic number, because the mean of its divisors is an integer number (6123360733506).

Almost surely, 2^{20411202445015} is an apocalyptic number.

20411202445015 is a deficient number, since it is larger than the sum of its proper divisors (4082240489009).

20411202445015 is an equidigital number, since it uses as much as digits as its factorization.

20411202445015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082240489008.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 20411202445015 its reverse (51054420211402), we get a palindrome (71465622656417).

The spelling of 20411202445015 in words is "twenty trillion, four hundred eleven billion, two hundred two million, four hundred forty-five thousand, fifteen".