216313261156 has 12 divisors (see below), whose sum is σ = 378551601792. Its totient is φ = 108155660648.

The previous prime is 216313261093. The next prime is 216313261181. The reversal of 216313261156 is 651162313612.

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, 539541 + ... + 850723.

It is an arithmetic number, because the mean of its divisors is an integer number (31545966816).

Almost surely, 2^216313261156 is an apocalyptic number.

It is an amenable number.

216313261156 is a deficient number, since it is larger than the sum of its proper divisors (162238340636).

216313261156 is a wasteful number, since it uses less digits than its factorization.

216313261156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484970 (or 484968 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

Adding to 216313261156 its reverse (651162313612), we get a palindrome (867475574768).

The spelling of 216313261156 in words is "two hundred sixteen billion, three hundred thirteen million, two hundred sixty-one thousand, one hundred fifty-six".