166480663 has 2 divisors, whose sum is σ = 166480664. Its totient is φ = 166480662.

The previous prime is 166480637. The next prime is 166480667. The reversal of 166480663 is 366084661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166480663 is a prime.

It is a super-2 number, since 2×166480663² = 55431622305839138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166480667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83240331 + 83240332.

It is an arithmetic number, because the mean of its divisors is an integer number (83240332).

Almost surely, 2^166480663 is an apocalyptic number.

166480663 is a deficient number, since it is larger than the sum of its proper divisors (1).

166480663 is an equidigital number, since it uses as much as digits as its factorization.

166480663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 166480663 is about 12902.7385852772. The cubic root of 166480663 is about 550.1164084181.

The spelling of 166480663 in words is "one hundred sixty-six million, four hundred eighty thousand, six hundred sixty-three".