216506151310156 has 24 divisors (see below), whose sum is σ = 380232867267680. Its totient is φ = 107868835562112.

The previous prime is 216506151310151. The next prime is 216506151310181. The reversal of 216506151310156 is 651013151605612.

It is not an unprimeable number, because it can be changed into a prime (216506151310151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79450536 + ... + 82130383.

Almost surely, 2^{216506151310156} is an apocalyptic number.

It is an amenable number.

216506151310156 is a deficient number, since it is larger than the sum of its proper divisors (163726715957524).

216506151310156 is a wasteful number, since it uses less digits than its factorization.

216506151310156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161582113 (or 161582111 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 216506151310156 in words is "two hundred sixteen trillion, five hundred six billion, one hundred fifty-one million, three hundred ten thousand, one hundred fifty-six".