216245443322156 has 12 divisors (see below), whose sum is σ = 378461867535360. Its totient is φ = 108113481169200.

The previous prime is 216245443322131. The next prime is 216245443322219. The reversal of 216245443322156 is 651223344542612.

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, 2310070316 + ... + 2310163923.

It is an arithmetic number, because the mean of its divisors is an integer number (31538488961280).

Almost surely, 2^{216245443322156} is an apocalyptic number.

It is an amenable number.

216245443322156 is a deficient number, since it is larger than the sum of its proper divisors (162216424213204).

216245443322156 is a wasteful number, since it uses less digits than its factorization.

216245443322156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4620245944 (or 4620245942 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 50.

Adding to 216245443322156 its reverse (651223344542612), we get a palindrome (867468787864768).

The spelling of 216245443322156 in words is "two hundred sixteen trillion, two hundred forty-five billion, four hundred forty-three million, three hundred twenty-two thousand, one hundred fifty-six".