216671470720057 has 8 divisors (see below), whose sum is σ = 226092146273280. Its totient is φ = 207250809902400.

The previous prime is 216671470720051. The next prime is 216671470720079. The reversal of 216671470720057 is 750027074176612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216671470720057 - 2¹¹ = 216671470718009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216671470720051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35011432 + ... + 40732582.

It is an arithmetic number, because the mean of its divisors is an integer number (28261518284160).

Almost surely, 2^{216671470720057} is an apocalyptic number.

It is an amenable number.

216671470720057 is a deficient number, since it is larger than the sum of its proper divisors (9420675553223).

216671470720057 is a wasteful number, since it uses less digits than its factorization.

216671470720057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7367783.

The product of its (nonzero) digits is 6914880, while the sum is 55.

The spelling of 216671470720057 in words is "two hundred sixteen trillion, six hundred seventy-one billion, four hundred seventy million, seven hundred twenty thousand, fifty-seven".