66555056166006 has 8 divisors (see below), whose sum is σ = 133110112332024. Its totient is φ = 22185018722000.

The previous prime is 66555056165981. The next prime is 66555056166059. The reversal of 66555056166006 is 60066165055566.

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

66555056166006 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5546254680495 + ... + 5546254680506.

It is an arithmetic number, because the mean of its divisors is an integer number (16638764041503).

Almost surely, 2^{66555056166006} is an apocalyptic number.

66555056166006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66555056166006 is a wasteful number, since it uses less digits than its factorization.

66555056166006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11092509361006.

The product of its (nonzero) digits is 29160000, while the sum is 57.

The spelling of 66555056166006 in words is "sixty-six trillion, five hundred fifty-five billion, fifty-six million, one hundred sixty-six thousand, six".