16447377016 has 64 divisors (see below), whose sum is σ = 35666841600. Its totient is φ = 6964697088.

The previous prime is 16447376993. The next prime is 16447377031. The reversal of 16447377016 is 61077374461.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2759896 + ... + 2765848.

It is an arithmetic number, because the mean of its divisors is an integer number (557294400).

Almost surely, 2^16447377016 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 16447377016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17833420800).

16447377016 is an abundant number, since it is smaller than the sum of its proper divisors (19219464584).

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

16447377016 is a wasteful number, since it uses less digits than its factorization.

16447377016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6548 (or 6544 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 46.

The spelling of 16447377016 in words is "sixteen billion, four hundred forty-seven million, three hundred seventy-seven thousand, sixteen".