20146446163 has 2 divisors, whose sum is σ = 20146446164. Its totient is φ = 20146446162.

The previous prime is 20146446077. The next prime is 20146446167. The reversal of 20146446163 is 36164464102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20146446163 is a prime.

It is not a weakly prime, because it can be changed into another prime (20146446167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10073223081 + 10073223082.

It is an arithmetic number, because the mean of its divisors is an integer number (10073223082).

Almost surely, 2^20146446163 is an apocalyptic number.

20146446163 is a deficient number, since it is larger than the sum of its proper divisors (1).

20146446163 is an equidigital number, since it uses as much as digits as its factorization.

20146446163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 20146446163 in words is "twenty billion, one hundred forty-six million, four hundred forty-six thousand, one hundred sixty-three".