66000555555006 has 16 divisors (see below), whose sum is σ = 132004451608848. Its totient is φ = 21999628435200.

The previous prime is 66000555554849. The next prime is 66000555555017. The reversal of 66000555555006 is 60055555500066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138930565 + ... + 139404816.

It is an arithmetic number, because the mean of its divisors is an integer number (8250278225553).

Almost surely, 2^{66000555555006} is an apocalyptic number.

66000555555006 is an abundant number, since it is smaller than the sum of its proper divisors (66003896053842).

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

66000555555006 is a wasteful number, since it uses less digits than its factorization.

66000555555006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278374907.

The product of its (nonzero) digits is 3375000, while the sum is 48.

The spelling of 66000555555006 in words is "sixty-six trillion, five hundred fifty-five million, five hundred fifty-five thousand, six".