65066056566 has 16 divisors (see below), whose sum is σ = 148722415104. Its totient is φ = 18590301864.

The previous prime is 65066056493. The next prime is 65066056597. The reversal of 65066056566 is 66565066056.

It is a happy number.

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, 774595870 + ... + 774595953.

It is an arithmetic number, because the mean of its divisors is an integer number (9295150944).

Almost surely, 2^65066056566 is an apocalyptic number.

65066056566 is an abundant number, since it is smaller than the sum of its proper divisors (83656358538).

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

65066056566 is a wasteful number, since it uses less digits than its factorization.

65066056566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549191835.

The product of its (nonzero) digits is 5832000, while the sum is 51.

The spelling of 65066056566 in words is "sixty-five billion, sixty-six million, fifty-six thousand, five hundred sixty-six".