254066663 has 8 divisors (see below), whose sum is σ = 256509840. Its totient is φ = 251634240.

The previous prime is 254066641. The next prime is 254066677. The reversal of 254066663 is 366660452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 254066663 - 2⁶ = 254066599 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 (254066063) 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 7 ways as a sum of consecutive naturals, for example, 49523 + ... + 54411.

It is an arithmetic number, because the mean of its divisors is an integer number (32063730).

Almost surely, 2^254066663 is an apocalyptic number.

254066663 is a deficient number, since it is larger than the sum of its proper divisors (2443177).

254066663 is a wasteful number, since it uses less digits than its factorization.

254066663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 254066663 is about 15939.4687176204. The cubic root of 254066663 is about 633.3579522902.

The spelling of 254066663 in words is "two hundred fifty-four million, sixty-six thousand, six hundred sixty-three".