65216721060952 has 16 divisors (see below), whose sum is σ = 128717212620600. Its totient is φ = 30892131028800.

The previous prime is 65216721060943. The next prime is 65216721061033. The reversal of 65216721060952 is 25906012761256.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 65216721060952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214528687549 + ... + 214528687852.

Almost surely, 2^{65216721060952} is an apocalyptic number.

It is an amenable number.

65216721060952 is a deficient number, since it is larger than the sum of its proper divisors (63500491559648).

65216721060952 is a wasteful number, since it uses less digits than its factorization.

65216721060952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429057375426 (or 429057375422 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 65216721060952 in words is "sixty-five trillion, two hundred sixteen billion, seven hundred twenty-one million, sixty thousand, nine hundred fifty-two".