20424507167 has 2 divisors, whose sum is σ = 20424507168. Its totient is φ = 20424507166.

The previous prime is 20424507119. The next prime is 20424507221. The reversal of 20424507167 is 76170542402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20424507167 - 2²⁸ = 20156071711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20424507167.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20424507667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212253583 + 10212253584.

It is an arithmetic number, because the mean of its divisors is an integer number (10212253584).

Almost surely, 2^20424507167 is an apocalyptic number.

20424507167 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424507167 is an equidigital number, since it uses as much as digits as its factorization.

20424507167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 20424507167 in words is "twenty billion, four hundred twenty-four million, five hundred seven thousand, one hundred sixty-seven".