20413525516133 has 2 divisors, whose sum is σ = 20413525516134. Its totient is φ = 20413525516132.

The previous prime is 20413525516103. The next prime is 20413525516243. The reversal of 20413525516133 is 33161552531402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18636428562049 + 1777096954084 = 4316993^2 + 1333078^2 .

It is a cyclic number.

It is not a de Polignac number, because 20413525516133 - 2¹⁰ = 20413525515109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20413525516103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206762758066 + 10206762758067.

It is an arithmetic number, because the mean of its divisors is an integer number (10206762758067).

Almost surely, 2^{20413525516133} is an apocalyptic number.

It is an amenable number.

20413525516133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413525516133 is an equidigital number, since it uses as much as digits as its factorization.

20413525516133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 20413525516133 in words is "twenty trillion, four hundred thirteen billion, five hundred twenty-five million, five hundred sixteen thousand, one hundred thirty-three".