166787363 has 2 divisors, whose sum is σ = 166787364. Its totient is φ = 166787362.

The previous prime is 166787333. The next prime is 166787399. The reversal of 166787363 is 363787661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166787363 - 2⁸ = 166787107 is a prime.

It is not a weakly prime, because it can be changed into another prime (166787333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83393681 + 83393682.

It is an arithmetic number, because the mean of its divisors is an integer number (83393682).

Almost surely, 2^166787363 is an apocalyptic number.

166787363 is a deficient number, since it is larger than the sum of its proper divisors (1).

166787363 is an equidigital number, since it uses as much as digits as its factorization.

166787363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 47.

The square root of 166787363 is about 12914.6181902525. The cubic root of 166787363 is about 550.4540195985.

The spelling of 166787363 in words is "one hundred sixty-six million, seven hundred eighty-seven thousand, three hundred sixty-three".