166014587 has 2 divisors, whose sum is σ = 166014588. Its totient is φ = 166014586.

The previous prime is 166014581. The next prime is 166014601. The reversal of 166014587 is 785410661.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166014587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166014587.

It is not a weakly prime, because it can be changed into another prime (166014581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83007293 + 83007294.

It is an arithmetic number, because the mean of its divisors is an integer number (83007294).

Almost surely, 2^166014587 is an apocalyptic number.

166014587 is a deficient number, since it is larger than the sum of its proper divisors (1).

166014587 is an equidigital number, since it uses as much as digits as its factorization.

166014587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 166014587 is about 12884.6647996756. The cubic root of 166014587 is about 549.6025635657.

The spelling of 166014587 in words is "one hundred sixty-six million, fourteen thousand, five hundred eighty-seven".