20867452163 has 2 divisors, whose sum is σ = 20867452164. Its totient is φ = 20867452162.

The previous prime is 20867452147. The next prime is 20867452211. The reversal of 20867452163 is 36125476802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20867452163 - 2⁴ = 20867452147 is a prime.

It is not a weakly prime, because it can be changed into another prime (20867452063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10433726081 + 10433726082.

It is an arithmetic number, because the mean of its divisors is an integer number (10433726082).

Almost surely, 2^20867452163 is an apocalyptic number.

20867452163 is a deficient number, since it is larger than the sum of its proper divisors (1).

20867452163 is an equidigital number, since it uses as much as digits as its factorization.

20867452163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 20867452163 in words is "twenty billion, eight hundred sixty-seven million, four hundred fifty-two thousand, one hundred sixty-three".