42156135167 has 2 divisors, whose sum is σ = 42156135168. Its totient is φ = 42156135166.

The previous prime is 42156135139. The next prime is 42156135173. The reversal of 42156135167 is 76153165124.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42156135167 - 2⁶ = 42156135103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42156132167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21078067583 + 21078067584.

It is an arithmetic number, because the mean of its divisors is an integer number (21078067584).

Almost surely, 2^42156135167 is an apocalyptic number.

42156135167 is a deficient number, since it is larger than the sum of its proper divisors (1).

42156135167 is an equidigital number, since it uses as much as digits as its factorization.

42156135167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 41.

The spelling of 42156135167 in words is "forty-two billion, one hundred fifty-six million, one hundred thirty-five thousand, one hundred sixty-seven".