216230477664858 has 16 divisors (see below), whose sum is σ = 432491010471840. Its totient is φ = 72071816697936.

The previous prime is 216230477664841. The next prime is 216230477664869. The reversal of 216230477664858 is 858466774032612.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 216230477664792 and 216230477664801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1252204060 + ... + 1252376727.

It is an arithmetic number, because the mean of its divisors is an integer number (27030688154490).

Almost surely, 2^{216230477664858} is an apocalyptic number.

216230477664858 is an abundant number, since it is smaller than the sum of its proper divisors (216260532806982).

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

216230477664858 is a wasteful number, since it uses less digits than its factorization.

216230477664858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504595181.

The product of its (nonzero) digits is 650280960, while the sum is 69.

The spelling of 216230477664858 in words is "two hundred sixteen trillion, two hundred thirty billion, four hundred seventy-seven million, six hundred sixty-four thousand, eight hundred fifty-eight".