66066066000042 has 32 divisors (see below), whose sum is σ = 137452034894400. Its totient is φ = 21143856211968.

The previous prime is 66066066000019. The next prime is 66066066000059. The reversal of 66066066000042 is 24000066066066.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66066065999958 and 66066066000003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1060555543 + ... + 1060617834.

It is an arithmetic number, because the mean of its divisors is an integer number (4295376090450).

Almost surely, 2^{66066066000042} is an apocalyptic number.

66066066000042 is an abundant number, since it is smaller than the sum of its proper divisors (71385968894358).

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

66066066000042 is a wasteful number, since it uses less digits than its factorization.

66066066000042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121173590.

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 66066066000042 in words is "sixty-six trillion, sixty-six billion, sixty-six million, forty-two", and thus it is an aban number, an eban number, and an uban number.