216043847715071 has 4 divisors (see below), whose sum is σ = 227414576542200. Its totient is φ = 204673118887944.

The previous prime is 216043847715061. The next prime is 216043847715119. The reversal of 216043847715071 is 170517748340612.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216043847715071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216043847714998 and 216043847715016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216043847715001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5685364413536 + ... + 5685364413573.

It is an arithmetic number, because the mean of its divisors is an integer number (56853644135550).

Almost surely, 2^{216043847715071} is an apocalyptic number.

216043847715071 is a deficient number, since it is larger than the sum of its proper divisors (11370728827129).

216043847715071 is a wasteful number, since it uses less digits than its factorization.

216043847715071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11370728827128.

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 216043847715071 in words is "two hundred sixteen trillion, forty-three billion, eight hundred forty-seven million, seven hundred fifteen thousand, seventy-one".