216016204420 has 48 divisors (see below), whose sum is σ = 454369708800. Its totient is φ = 86266486656.

The previous prime is 216016204403. The next prime is 216016204427. The reversal of 216016204420 is 24402610612.

It is not an unprimeable number, because it can be changed into a prime (216016204427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38413729 + ... + 38419351.

It is an arithmetic number, because the mean of its divisors is an integer number (9466035600).

Almost surely, 2^216016204420 is an apocalyptic number.

216016204420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216016204420 is an abundant number, since it is smaller than the sum of its proper divisors (238353504380).

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

216016204420 is a wasteful number, since it uses less digits than its factorization.

216016204420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8404 (or 8402 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 216016204420 in words is "two hundred sixteen billion, sixteen million, two hundred four thousand, four hundred twenty".