816214016 has 52 divisors (see below), whose sum is σ = 1651305600. Its totient is φ = 403341312.

The previous prime is 816213997. The next prime is 816214031. The reversal of 816214016 is 610412618.

It is a self number, because there is not a number n which added to its sum of digits gives 816214016.

It is a congruent number.

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, 363425 + ... + 365663.

Almost surely, 2^816214016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 816214016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825652800).

816214016 is an abundant number, since it is smaller than the sum of its proper divisors (835091584).

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

816214016 is an equidigital number, since it uses as much as digits as its factorization.

816214016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352 (or 2330 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 816214016 is about 28569.4594978624. The cubic root of 816214016 is about 934.5474340450.

The spelling of 816214016 in words is "eight hundred sixteen million, two hundred fourteen thousand, sixteen".