66065010606656 has 28 divisors (see below), whose sum is σ = 132944202691200. Its totient is φ = 32567258747520.

The previous prime is 66065010606631. The next prime is 66065010606767. The reversal of 66065010606656 is 65660601056066.

It is a junction number, because it is equal to n+sod(n) for n = 66065010606598 and 66065010606607.

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, 7269472856 + ... + 7269481943.

Almost surely, 2^{66065010606656} is an apocalyptic number.

It is an amenable number.

66065010606656 is an abundant number, since it is smaller than the sum of its proper divisors (66879192084544).

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

66065010606656 is a wasteful number, since it uses less digits than its factorization.

66065010606656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14538954882 (or 14538954872 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 66065010606656 in words is "sixty-six trillion, sixty-five billion, ten million, six hundred six thousand, six hundred fifty-six".