16168335488 has 24 divisors (see below), whose sum is σ = 32213222055. Its totient is φ = 8083448448.

The previous prime is 16168335481. The next prime is 16168335523. The reversal of 16168335488 is 88453386161.

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.

It can be written as a sum of positive squares in only one way, i.e., 8084167744 + 8084167744 = 89912^2 + 89912^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=89912.

It is a super-2 number, since 2×16168335488² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16168335481) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1432973 + ... + 1444211.

Almost surely, 2^16168335488 is an apocalyptic number.

It is an amenable number.

16168335488 is a deficient number, since it is larger than the sum of its proper divisors (16044886567).

16168335488 is an frugal number, since it uses more digits than its factorization.

16168335488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22492 (or 11241 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 53.

The spelling of 16168335488 in words is "sixteen billion, one hundred sixty-eight million, three hundred thirty-five thousand, four hundred eighty-eight".