20606015640053 has 2 divisors, whose sum is σ = 20606015640054. Its totient is φ = 20606015640052.

The previous prime is 20606015639953. The next prime is 20606015640061. The reversal of 20606015640053 is 35004651060602.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19344576673009 + 1261438967044 = 4398247^2 + 1123138^2 .

It is a cyclic number.

It is not a de Polignac number, because 20606015640053 - 2³⁴ = 20588835770869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20606015639989 and 20606015640016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20606015640073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10303007820026 + 10303007820027.

It is an arithmetic number, because the mean of its divisors is an integer number (10303007820027).

Almost surely, 2^{20606015640053} is an apocalyptic number.

It is an amenable number.

20606015640053 is a deficient number, since it is larger than the sum of its proper divisors (1).

20606015640053 is an equidigital number, since it uses as much as digits as its factorization.

20606015640053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 20606015640053 in words is "twenty trillion, six hundred six billion, fifteen million, six hundred forty thousand, fifty-three".