66536606167 has 2 divisors, whose sum is σ = 66536606168. Its totient is φ = 66536606166.

The previous prime is 66536606069. The next prime is 66536606177. The reversal of 66536606167 is 76160663566.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66536606167 - 2³¹ = 64389122519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66536606177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33268303083 + 33268303084.

It is an arithmetic number, because the mean of its divisors is an integer number (33268303084).

Almost surely, 2^66536606167 is an apocalyptic number.

66536606167 is a deficient number, since it is larger than the sum of its proper divisors (1).

66536606167 is an equidigital number, since it uses as much as digits as its factorization.

66536606167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 52.

The spelling of 66536606167 in words is "sixty-six billion, five hundred thirty-six million, six hundred six thousand, one hundred sixty-seven".