666027605677154 has 16 divisors (see below), whose sum is σ = 1141763162069376. Its totient is φ = 285440014348800.

The previous prime is 666027605677111. The next prime is 666027605677157. The reversal of 666027605677154 is 451776506720666.

It is not an unprimeable number, because it can be changed into a prime (666027605677157) 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, 21551327 + ... + 42385314.

It is an arithmetic number, because the mean of its divisors is an integer number (71360197629336).

Almost surely, 2^{666027605677154} is an apocalyptic number.

666027605677154 is a deficient number, since it is larger than the sum of its proper divisors (475735556392222).

666027605677154 is a wasteful number, since it uses less digits than its factorization.

666027605677154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64680721.

The product of its (nonzero) digits is 533433600, while the sum is 68.

The spelling of 666027605677154 in words is "six hundred sixty-six trillion, twenty-seven billion, six hundred five million, six hundred seventy-seven thousand, one hundred fifty-four".