163927920311 has 2 divisors, whose sum is σ = 163927920312. Its totient is φ = 163927920310.

The previous prime is 163927920283. The next prime is 163927920313. The reversal of 163927920311 is 113029729361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163927920311 - 2²⁶ = 163860811447 is a prime.

It is a Sophie Germain prime.

Together with 163927920313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163927920313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81963960155 + 81963960156.

It is an arithmetic number, because the mean of its divisors is an integer number (81963960156).

Almost surely, 2^163927920311 is an apocalyptic number.

163927920311 is a deficient number, since it is larger than the sum of its proper divisors (1).

163927920311 is an equidigital number, since it uses as much as digits as its factorization.

163927920311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 163927920311 in words is "one hundred sixty-three billion, nine hundred twenty-seven million, nine hundred twenty thousand, three hundred eleven".