666763301 has 8 divisors (see below), whose sum is σ = 672600000. Its totient is φ = 660945600.

The previous prime is 666763247. The next prime is 666763303. The reversal of 666763301 is 103367666.

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 666763301 - 2¹⁰ = 666762277 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 (666763303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70925 + ... + 79773.

It is an arithmetic number, because the mean of its divisors is an integer number (84075000).

Almost surely, 2^666763301 is an apocalyptic number.

It is an amenable number.

666763301 is a deficient number, since it is larger than the sum of its proper divisors (5836699).

666763301 is a wasteful number, since it uses less digits than its factorization.

666763301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9499.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 666763301 is about 25821.7602227269. The cubic root of 666763301 is about 873.6226716300.

The spelling of 666763301 in words is "six hundred sixty-six million, seven hundred sixty-three thousand, three hundred one".