216547073107 has 4 divisors (see below), whose sum is σ = 216549208240. Its totient is φ = 216544937976.

The previous prime is 216547073081. The next prime is 216547073117. The reversal of 216547073107 is 701370745612.

It is a happy number.

216547073107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-216547073107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216547073117) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 907428 + ... + 1120945.

It is an arithmetic number, because the mean of its divisors is an integer number (54137302060).

Almost surely, 2^216547073107 is an apocalyptic number.

216547073107 is a deficient number, since it is larger than the sum of its proper divisors (2135133).

216547073107 is a wasteful number, since it uses less digits than its factorization.

216547073107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135132.

The product of its (nonzero) digits is 246960, while the sum is 43.

The spelling of 216547073107 in words is "two hundred sixteen billion, five hundred forty-seven million, seventy-three thousand, one hundred seven".