20167020169 has 2 divisors, whose sum is σ = 20167020170. Its totient is φ = 20167020168.

The previous prime is 20167020161. The next prime is 20167020233. The reversal of 20167020169 is 96102076102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12942020169 + 7225000000 = 113763^2 + 85000^2 .

It is a cyclic number.

It is not a de Polignac number, because 20167020169 - 2³ = 20167020161 is a prime.

It is a super-2 number, since 2×20167020169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20167020161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10083510084 + 10083510085.

It is an arithmetic number, because the mean of its divisors is an integer number (10083510085).

Almost surely, 2^20167020169 is an apocalyptic number.

It is an amenable number.

20167020169 is a deficient number, since it is larger than the sum of its proper divisors (1).

20167020169 is an equidigital number, since it uses as much as digits as its factorization.

20167020169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 20167020169 in words is "twenty billion, one hundred sixty-seven million, twenty thousand, one hundred sixty-nine".