666073207357 has 8 divisors (see below), whose sum is σ = 689050346400. Its totient is φ = 643096674864.

The previous prime is 666073207339. The next prime is 666073207369. The reversal of 666073207357 is 753702370666.

It is a happy number.

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 666073207357 - 2³⁵ = 631713468989 is a prime.

It is a super-2 number, since 2×666073207357² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666073207957) 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, 4184494 + ... + 4340752.

It is an arithmetic number, because the mean of its divisors is an integer number (86131293300).

Almost surely, 2^666073207357 is an apocalyptic number.

It is an amenable number.

666073207357 is a deficient number, since it is larger than the sum of its proper divisors (22977139043).

666073207357 is a wasteful number, since it uses less digits than its factorization.

666073207357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303275.

The product of its (nonzero) digits is 6667920, while the sum is 52.

The spelling of 666073207357 in words is "six hundred sixty-six billion, seventy-three million, two hundred seven thousand, three hundred fifty-seven".