66558966570048 has 112 divisors (see below), whose sum is σ = 176261285678400. Its totient is φ = 22166507059200.

The previous prime is 66558966570037. The next prime is 66558966570071. The reversal of 66558966570048 is 84007566985566.

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, 1025671683 + ... + 1025736573.

Almost surely, 2^{66558966570048} is an apocalyptic number.

It is an amenable number.

66558966570048 is an abundant number, since it is smaller than the sum of its proper divisors (109702319108352).

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

66558966570048 is a wasteful number, since it uses less digits than its factorization.

66558966570048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69596 (or 69586 counting only the distinct ones).

The product of its (nonzero) digits is 2612736000, while the sum is 75.

The spelling of 66558966570048 in words is "sixty-six trillion, five hundred fifty-eight billion, nine hundred sixty-six million, five hundred seventy thousand, forty-eight".