20105161167 has 32 divisors (see below), whose sum is σ = 33000791040. Its totient is φ = 10602443520.

The previous prime is 20105161157. The next prime is 20105161187. The reversal of 20105161167 is 76116150102.

It is not a de Polignac number, because 20105161167 - 2⁷ = 20105161039 is a prime.

It is a super-3 number, since 3×20105161167³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20105161147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2190067 + ... + 2199227.

It is an arithmetic number, because the mean of its divisors is an integer number (1031274720).

Almost surely, 2^20105161167 is an apocalyptic number.

20105161167 is a deficient number, since it is larger than the sum of its proper divisors (12895629873).

20105161167 is a wasteful number, since it uses less digits than its factorization.

20105161167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17223.

The product of its (nonzero) digits is 2520, while the sum is 30.

The spelling of 20105161167 in words is "twenty billion, one hundred five million, one hundred sixty-one thousand, one hundred sixty-seven".