166448763 has 20 divisors (see below), whose sum is σ = 267773968. Its totient is φ = 102429360.

The previous prime is 166448749. The next prime is 166448773. The reversal of 166448763 is 367844661.

It is a happy number.

166448763 is a `hidden beast` number, since 166 + 4 + 487 + 6 + 3 = 666.

It is not a de Polignac number, because 166448763 - 2⁸ = 166448507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166448773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 77983 + ... + 80088.

Almost surely, 2^166448763 is an apocalyptic number.

166448763 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

166448763 is a deficient number, since it is larger than the sum of its proper divisors (101325205).

166448763 is a wasteful number, since it uses less digits than its factorization.

166448763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158096 (or 158087 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 166448763 is about 12901.5023543772. The cubic root of 166448763 is about 550.0812695335.

The spelling of 166448763 in words is "one hundred sixty-six million, four hundred forty-eight thousand, seven hundred sixty-three".