167359145581 has 2 divisors, whose sum is σ = 167359145582. Its totient is φ = 167359145580.

The previous prime is 167359145573. The next prime is 167359145677. The reversal of 167359145581 is 185541953761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167350537225 + 8608356 = 409085^2 + 2934^2 .

It is a cyclic number.

It is not a de Polignac number, because 167359145581 - 2³ = 167359145573 is a prime.

It is a super-2 number, since 2×167359145581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167359140581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83679572790 + 83679572791.

It is an arithmetic number, because the mean of its divisors is an integer number (83679572791).

Almost surely, 2^167359145581 is an apocalyptic number.

It is an amenable number.

167359145581 is a deficient number, since it is larger than the sum of its proper divisors (1).

167359145581 is an equidigital number, since it uses as much as digits as its factorization.

167359145581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536000, while the sum is 55.

The spelling of 167359145581 in words is "one hundred sixty-seven billion, three hundred fifty-nine million, one hundred forty-five thousand, five hundred eighty-one".