65505705000066 has 48 divisors (see below), whose sum is σ = 150262554349440. Its totient is φ = 20566439762400.

The previous prime is 65505705000049. The next prime is 65505705000103. The reversal of 65505705000066 is 66000050750556.

It is a junction number, because it is equal to n+sod(n) for n = 65505704999985 and 65505705000030.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 553516410 + ... + 553634741.

It is an arithmetic number, because the mean of its divisors is an integer number (3130469882280).

Almost surely, 2^{65505705000066} is an apocalyptic number.

65505705000066 is an abundant number, since it is smaller than the sum of its proper divisors (84756849349374).

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

65505705000066 is a wasteful number, since it uses less digits than its factorization.

65505705000066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107151351 (or 1107151348 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 45.

The spelling of 65505705000066 in words is "sixty-five trillion, five hundred five billion, seven hundred five million, sixty-six", and thus it is an aban number.