20492864167 has 2 divisors, whose sum is σ = 20492864168. Its totient is φ = 20492864166.

The previous prime is 20492864153. The next prime is 20492864201. The reversal of 20492864167 is 76146829402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20492864167 is a prime.

It is a super-2 number, since 2×20492864167² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20492864167.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20492864107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10246432083 + 10246432084.

It is an arithmetic number, because the mean of its divisors is an integer number (10246432084).

Almost surely, 2^20492864167 is an apocalyptic number.

20492864167 is a deficient number, since it is larger than the sum of its proper divisors (1).

20492864167 is an equidigital number, since it uses as much as digits as its factorization.

20492864167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 20492864167 in words is "twenty billion, four hundred ninety-two million, eight hundred sixty-four thousand, one hundred sixty-seven".