20402214167 has 2 divisors, whose sum is σ = 20402214168. Its totient is φ = 20402214166.

The previous prime is 20402214143. The next prime is 20402214169. The reversal of 20402214167 is 76141220402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20402214167 - 2⁶ = 20402214103 is a prime.

It is a super-2 number, since 2×20402214167² (a number of 21 digits) contains 22 as substring.

Together with 20402214169, 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 (20402214169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10201107083 + 10201107084.

It is an arithmetic number, because the mean of its divisors is an integer number (10201107084).

Almost surely, 2^20402214167 is an apocalyptic number.

20402214167 is a deficient number, since it is larger than the sum of its proper divisors (1).

20402214167 is an equidigital number, since it uses as much as digits as its factorization.

20402214167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 20402214167 its reverse (76141220402), we get a palindrome (96543434569).

The spelling of 20402214167 in words is "twenty billion, four hundred two million, two hundred fourteen thousand, one hundred sixty-seven".