166102687 has 2 divisors, whose sum is σ = 166102688. Its totient is φ = 166102686.

The previous prime is 166102669. The next prime is 166102777. The reversal of 166102687 is 786201661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166102687 - 2¹¹ = 166100639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166102487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83051343 + 83051344.

It is an arithmetic number, because the mean of its divisors is an integer number (83051344).

Almost surely, 2^166102687 is an apocalyptic number.

166102687 is a deficient number, since it is larger than the sum of its proper divisors (1).

166102687 is an equidigital number, since it uses as much as digits as its factorization.

166102687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 166102687 is about 12888.0831390863. The cubic root of 166102687 is about 549.6997667174.

The spelling of 166102687 in words is "one hundred sixty-six million, one hundred two thousand, six hundred eighty-seven".