20413211513643 has 12 divisors (see below), whose sum is σ = 31753884576960. Its totient is φ = 12561976316016.

The previous prime is 20413211513633. The next prime is 20413211513677. The reversal of 20413211513643 is 34631511231402.

20413211513643 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 3 + 2 + 1 + 1 + 5 + 1 + 3 + 643 = 666.

It is not a de Polignac number, because 20413211513643 - 2⁹ = 20413211513131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20413211513598 and 20413211513607.

It is not an unprimeable number, because it can be changed into a prime (20413211513623) 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 11 ways as a sum of consecutive naturals, for example, 87235946523 + ... + 87235946756.

It is an arithmetic number, because the mean of its divisors is an integer number (2646157048080).

Almost surely, 2^{20413211513643} is an apocalyptic number.

20413211513643 is a deficient number, since it is larger than the sum of its proper divisors (11340673063317).

20413211513643 is a wasteful number, since it uses less digits than its factorization.

20413211513643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174471893298 (or 174471893295 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 20413211513643 in words is "twenty trillion, four hundred thirteen billion, two hundred eleven million, five hundred thirteen thousand, six hundred forty-three".