65585855466 has 64 divisors (see below), whose sum is σ = 154642867200. Its totient is φ = 20532860928.

The previous prime is 65585855429. The next prime is 65585855477. The reversal of 65585855466 is 66455858556.

65585855466 is a `hidden beast` number, since 6 + 5 + 5 + 8 + 5 + 85 + 546 + 6 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365146 + ... + 514298.

It is an arithmetic number, because the mean of its divisors is an integer number (2416294800).

Almost surely, 2^65585855466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65585855466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77321433600).

65585855466 is an abundant number, since it is smaller than the sum of its proper divisors (89057011734).

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

65585855466 is a wasteful number, since it uses less digits than its factorization.

65585855466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149660 (or 149654 counting only the distinct ones).

The product of its digits is 172800000, while the sum is 63.

The spelling of 65585855466 in words is "sixty-five billion, five hundred eighty-five million, eight hundred fifty-five thousand, four hundred sixty-six".