65216401524266 has 4 divisors (see below), whose sum is σ = 97824602286402. Its totient is φ = 32608200762132.

The previous prime is 65216401524223. The next prime is 65216401524271. The reversal of 65216401524266 is 66242510461256.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 64407382227241 + 809019297025 = 8025421^2 + 899455^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16304100381065 + ... + 16304100381068.

Almost surely, 2^{65216401524266} is an apocalyptic number.

65216401524266 is a deficient number, since it is larger than the sum of its proper divisors (32608200762136).

65216401524266 is a wasteful number, since it uses less digits than its factorization.

65216401524266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32608200762135.

The product of its (nonzero) digits is 4147200, while the sum is 50.

The spelling of 65216401524266 in words is "sixty-five trillion, two hundred sixteen billion, four hundred one million, five hundred twenty-four thousand, two hundred sixty-six".