20010811167 has 6 divisors (see below), whose sum is σ = 28904505032. Its totient is φ = 13340540772.

The previous prime is 20010811127. The next prime is 20010811199. The reversal of 20010811167 is 76111801002.

It is not a de Polignac number, because 20010811167 - 2⁶ = 20010811103 is a prime.

It is a super-2 number, since 2×20010811167² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20010811167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010811127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111711723 + ... + 1111711740.

Almost surely, 2^20010811167 is an apocalyptic number.

20010811167 is a deficient number, since it is larger than the sum of its proper divisors (8893693865).

20010811167 is a wasteful number, since it uses less digits than its factorization.

20010811167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223423469 (or 2223423466 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 27.

The spelling of 20010811167 in words is "twenty billion, ten million, eight hundred eleven thousand, one hundred sixty-seven".