16497271368 has 36 divisors (see below), whose sum is σ = 44683061865. Its totient is φ = 5498727168.

The previous prime is 16497271361. The next prime is 16497271381. The reversal of 16497271368 is 86317279461.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

16497271368 is a `hidden beast` number, since 1 + 6 + 4 + 9 + 7 + 271 + 368 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16312909284 + 184362084 = 127722^2 + 13578^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=90822.

It is not an unprimeable number, because it can be changed into a prime (16497271361) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1082296 + ... + 1097432.

Almost surely, 2^16497271368 is an apocalyptic number.

16497271368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16497271368 is an abundant number, since it is smaller than the sum of its proper divisors (28185790497).

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

16497271368 is an frugal number, since it uses more digits than its factorization.

16497271368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30286 (or 15142 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The spelling of 16497271368 in words is "sixteen billion, four hundred ninety-seven million, two hundred seventy-one thousand, three hundred sixty-eight".