216208837223147 has 4 divisors (see below), whose sum is σ = 216588817605480. Its totient is φ = 215828856840816.

The previous prime is 216208837223059. The next prime is 216208837223161. The reversal of 216208837223147 is 741322738802612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216208837223147 - 2¹² = 216208837219051 is a prime.

It is a super-2 number, since 2×216208837223147² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216208837223092 and 216208837223101.

It is not an unprimeable number, because it can be changed into a prime (216208839223147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189990190313 + ... + 189990191450.

It is an arithmetic number, because the mean of its divisors is an integer number (54147204401370).

Almost surely, 2^{216208837223147} is an apocalyptic number.

216208837223147 is a deficient number, since it is larger than the sum of its proper divisors (379980382333).

216208837223147 is an equidigital number, since it uses as much as digits as its factorization.

216208837223147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379980382332.

The product of its (nonzero) digits is 10838016, while the sum is 56.

The spelling of 216208837223147 in words is "two hundred sixteen trillion, two hundred eight billion, eight hundred thirty-seven million, two hundred twenty-three thousand, one hundred forty-seven".