16216546216 has 16 divisors (see below), whose sum is σ = 32744949300. Its totient is φ = 7484559744.

The previous prime is 16216546187. The next prime is 16216546219. The reversal of 16216546216 is 61264561261.

It can be written as a sum of positive squares in 2 ways, for example, as 14798722500 + 1417823716 = 121650^2 + 37654^2 .

It is not an unprimeable number, because it can be changed into a prime (16216546219) 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, 77964061 + ... + 77964268.

Almost surely, 2^16216546216 is an apocalyptic number.

It is an amenable number.

16216546216 is an abundant number, since it is smaller than the sum of its proper divisors (16528403084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16216546216 is a wasteful number, since it uses less digits than its factorization.

16216546216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155928348 (or 155928344 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The spelling of 16216546216 in words is "sixteen billion, two hundred sixteen million, five hundred forty-six thousand, two hundred sixteen".