216215159658 has 8 divisors (see below), whose sum is σ = 432430319328. Its totient is φ = 72071719884.

The previous prime is 216215159623. The next prime is 216215159681. The reversal of 216215159658 is 856951512612.

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

216215159658 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 216215159658.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18017929966 + ... + 18017929977.

It is an arithmetic number, because the mean of its divisors is an integer number (54053789916).

Almost surely, 2^216215159658 is an apocalyptic number.

216215159658 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216215159658 is a wasteful number, since it uses less digits than its factorization.

216215159658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36035859948.

The product of its digits is 1296000, while the sum is 51.

The spelling of 216215159658 in words is "two hundred sixteen billion, two hundred fifteen million, one hundred fifty-nine thousand, six hundred fifty-eight".