20320625773163 has 2 divisors, whose sum is σ = 20320625773164. Its totient is φ = 20320625773162.

The previous prime is 20320625773099. The next prime is 20320625773199. The reversal of 20320625773163 is 36137752602302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20320625773163 - 2⁶ = 20320625773099 is a prime.

It is not a weakly prime, because it can be changed into another prime (20320625073163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160312886581 + 10160312886582.

It is an arithmetic number, because the mean of its divisors is an integer number (10160312886582).

Almost surely, 2^{20320625773163} is an apocalyptic number.

20320625773163 is a deficient number, since it is larger than the sum of its proper divisors (1).

20320625773163 is an equidigital number, since it uses as much as digits as its factorization.

20320625773163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 47.

The spelling of 20320625773163 in words is "twenty trillion, three hundred twenty billion, six hundred twenty-five million, seven hundred seventy-three thousand, one hundred sixty-three".