6542405167 has 2 divisors, whose sum is σ = 6542405168. Its totient is φ = 6542405166.

The previous prime is 6542405159. The next prime is 6542405179. The reversal of 6542405167 is 7615042456.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6542405167 - 2³ = 6542405159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6542405117) 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, 3271202583 + 3271202584.

It is an arithmetic number, because the mean of its divisors is an integer number (3271202584).

Almost surely, 2^6542405167 is an apocalyptic number.

6542405167 is a deficient number, since it is larger than the sum of its proper divisors (1).

6542405167 is an equidigital number, since it uses as much as digits as its factorization.

6542405167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 6542405167 is about 80885.1356369018. The cubic root of 6542405167 is about 1870.3051888296.

The spelling of 6542405167 in words is "six billion, five hundred forty-two million, four hundred five thousand, one hundred sixty-seven".