65570220364208 has 80 divisors (see below), whose sum is σ = 149010446560320. Its totient is φ = 27370054852608.

The previous prime is 65570220364199. The next prime is 65570220364241. The reversal of 65570220364208 is 80246302207556.

It is a super-2 number, since 2×65570220364208² (a number of 28 digits) contains 22 as substring.

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, 39501353 + ... + 41127816.

It is an arithmetic number, because the mean of its divisors is an integer number (1862630582004).

Almost surely, 2^{65570220364208} is an apocalyptic number.

It is an amenable number.

65570220364208 is an abundant number, since it is smaller than the sum of its proper divisors (83440226196112).

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

65570220364208 is a wasteful number, since it uses less digits than its factorization.

65570220364208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80629374 (or 80629368 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 50.

The spelling of 65570220364208 in words is "sixty-five trillion, five hundred seventy billion, two hundred twenty million, three hundred sixty-four thousand, two hundred eight".