816016968016 has 20 divisors (see below), whose sum is σ = 1581127444224. Its totient is φ = 407984079200.

The previous prime is 816016967981. The next prime is 816016968049. The reversal of 816016968016 is 610869610618.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1247920 + ... + 1785871.

Almost surely, 2^816016968016 is an apocalyptic number.

It is an amenable number.

816016968016 is a deficient number, since it is larger than the sum of its proper divisors (765110476208).

816016968016 is a wasteful number, since it uses less digits than its factorization.

816016968016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050610 (or 3050604 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 816016968016 in words is "eight hundred sixteen billion, sixteen million, nine hundred sixty-eight thousand, sixteen".