65506571672000 has 56 divisors (see below), whose sum is σ = 162227024765520. Its totient is φ = 26202628665600.

The previous prime is 65506571671993. The next prime is 65506571672011. The reversal of 65506571672000 is 27617560556.

It is a super-2 number, since 2×65506571672000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a self number, because there is not a number n which added to its sum of digits gives 65506571672000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4094152730 + ... + 4094168729.

Almost surely, 2^{65506571672000} is an apocalyptic number.

It is an amenable number.

65506571672000 is an abundant number, since it is smaller than the sum of its proper divisors (96720453093520).

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

65506571672000 is an equidigital number, since it uses as much as digits as its factorization.

65506571672000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8188321486 (or 8188321466 counting only the distinct ones).

The product of its (nonzero) digits is 2646000, while the sum is 50.

The spelling of 65506571672000 in words is "sixty-five trillion, five hundred six billion, five hundred seventy-one million, six hundred seventy-two thousand".