216215159659 has 8 divisors (see below), whose sum is σ = 216418282272. Its totient is φ = 216012118080.

The previous prime is 216215159623. The next prime is 216215159681. The reversal of 216215159659 is 956951512612.

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 a de Polignac number, because none of the positive numbers 2^k-216215159659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216215159159) 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, 6182994 + ... + 6217864.

It is an arithmetic number, because the mean of its divisors is an integer number (27052285284).

Almost surely, 2^216215159659 is an apocalyptic number.

216215159659 is a deficient number, since it is larger than the sum of its proper divisors (203122613).

216215159659 is a wasteful number, since it uses less digits than its factorization.

216215159659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40517.

The product of its digits is 1458000, while the sum is 52.

The spelling of 216215159659 in words is "two hundred sixteen billion, two hundred fifteen million, one hundred fifty-nine thousand, six hundred fifty-nine".