166356103 has 2 divisors, whose sum is σ = 166356104. Its totient is φ = 166356102.

The previous prime is 166356097. The next prime is 166356131. The reversal of 166356103 is 301653661.

166356103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166356103 - 2¹³ = 166347911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166356133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83178051 + 83178052.

It is an arithmetic number, because the mean of its divisors is an integer number (83178052).

Almost surely, 2^166356103 is an apocalyptic number.

166356103 is a deficient number, since it is larger than the sum of its proper divisors (1).

166356103 is an equidigital number, since it uses as much as digits as its factorization.

166356103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 166356103 is about 12897.9107998156. The cubic root of 166356103 is about 549.9791760711.

The spelling of 166356103 in words is "one hundred sixty-six million, three hundred fifty-six thousand, one hundred three".