666027066073271 has 8 divisors (see below), whose sum is σ = 761174936301984. Its totient is φ = 570879482470560.

The previous prime is 666027066073267. The next prime is 666027066073307. The reversal of 666027066073271 is 172370660720666.

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 666027066073271 - 2² = 666027066073267 is a prime.

It is a super-2 number, since 2×666027066073271² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 666027066073271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666027066073211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66653900 + ... + 75992081.

It is an arithmetic number, because the mean of its divisors is an integer number (95146867037748).

Almost surely, 2^{666027066073271} is an apocalyptic number.

666027066073271 is a deficient number, since it is larger than the sum of its proper divisors (95147870228713).

666027066073271 is a wasteful number, since it uses less digits than its factorization.

666027066073271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143313001.

The product of its (nonzero) digits is 32006016, while the sum is 59.

The spelling of 666027066073271 in words is "six hundred sixty-six trillion, twenty-seven billion, sixty-six million, seventy-three thousand, two hundred seventy-one".