20536471413 has 12 divisors (see below), whose sum is σ = 29665378080. Its totient is φ = 13690248936.

The previous prime is 20536471391. The next prime is 20536471421. The reversal of 20536471413 is 31417463502.

20536471413 is a `hidden beast` number, since 2 + 0 + 5 + 3 + 647 + 1 + 4 + 1 + 3 = 666.

It is not a de Polignac number, because 20536471413 - 2⁵ = 20536471381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20536471493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158098 + ... + 257036.

It is an arithmetic number, because the mean of its divisors is an integer number (2472114840).

Almost surely, 2^20536471413 is an apocalyptic number.

It is an amenable number.

20536471413 is a deficient number, since it is larger than the sum of its proper divisors (9128906667).

20536471413 is a wasteful number, since it uses less digits than its factorization.

20536471413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122008 (or 122005 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 20536471413 in words is "twenty billion, five hundred thirty-six million, four hundred seventy-one thousand, four hundred thirteen".