216298476241 has 3 divisors (see below), whose sum is σ = 216298941321. Its totient is φ = 216298011162.

The previous prime is 216298476221. The next prime is 216298476253. The reversal of 216298476241 is 142674892612.

The square root of 216298476241 is 465079.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 216298476241 - 2⁷ = 216298476113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216298476221) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 232540 + ... + 697618.

It is an arithmetic number, because the mean of its divisors is an integer number (72099647107).

Almost surely, 2^216298476241 is an apocalyptic number.

216298476241 is the 465079-th square number.

216298476241 is the 232540-th centered octagonal number.

It is an amenable number.

216298476241 is a deficient number, since it is larger than the sum of its proper divisors (465080).

216298476241 is an frugal number, since it uses more digits than its factorization.

216298476241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930158 (or 465079 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The spelling of 216298476241 in words is "two hundred sixteen billion, two hundred ninety-eight million, four hundred seventy-six thousand, two hundred forty-one".