20366835163 has 2 divisors, whose sum is σ = 20366835164. Its totient is φ = 20366835162.

The previous prime is 20366835119. The next prime is 20366835197. The reversal of 20366835163 is 36153866302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20366835163 - 2³³ = 11776900571 is a prime.

It is a super-3 number, since 3×20366835163³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20366835103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10183417581 + 10183417582.

It is an arithmetic number, because the mean of its divisors is an integer number (10183417582).

Almost surely, 2^20366835163 is an apocalyptic number.

20366835163 is a deficient number, since it is larger than the sum of its proper divisors (1).

20366835163 is an equidigital number, since it uses as much as digits as its factorization.

20366835163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 20366835163 in words is "twenty billion, three hundred sixty-six million, eight hundred thirty-five thousand, one hundred sixty-three".