166314968903 has 2 divisors, whose sum is σ = 166314968904. Its totient is φ = 166314968902.

The previous prime is 166314968851. The next prime is 166314968947. The reversal of 166314968903 is 309869413661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166314968903 - 2¹⁶ = 166314903367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166314968993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83157484451 + 83157484452.

It is an arithmetic number, because the mean of its divisors is an integer number (83157484452).

Almost surely, 2^166314968903 is an apocalyptic number.

166314968903 is a deficient number, since it is larger than the sum of its proper divisors (1).

166314968903 is an equidigital number, since it uses as much as digits as its factorization.

166314968903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5038848, while the sum is 56.

The spelling of 166314968903 in words is "one hundred sixty-six billion, three hundred fourteen million, nine hundred sixty-eight thousand, nine hundred three".