16797281216 has 14 divisors (see below), whose sum is σ = 33332105040. Its totient is φ = 8398640576.

The previous prime is 16797281191. The next prime is 16797281231. The reversal of 16797281216 is 61218279761.

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 as a sum of consecutive naturals, namely, 131228696 + ... + 131228823.

Almost surely, 2^16797281216 is an apocalyptic number.

16797281216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16797281216 is a deficient number, since it is larger than the sum of its proper divisors (16534823824).

16797281216 is an equidigital number, since it uses as much as digits as its factorization.

16797281216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262457531 (or 262457521 counting only the distinct ones).

The product of its digits is 508032, while the sum is 50.

The spelling of 16797281216 in words is "sixteen billion, seven hundred ninety-seven million, two hundred eighty-one thousand, two hundred sixteen".