16004133280 has 24 divisors (see below), whose sum is σ = 37809765252. Its totient is φ = 6401653248.

The previous prime is 16004133259. The next prime is 16004133281. The reversal of 16004133280 is 8233140061.

It can be written as a sum of positive squares in 2 ways, for example, as 15776364816 + 227768464 = 125604^2 + 15092^2 .

It is a super-2 number, since 2×16004133280² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16004133281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50012757 + ... + 50013076.

Almost surely, 2^16004133280 is an apocalyptic number.

16004133280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16004133280 is an abundant number, since it is smaller than the sum of its proper divisors (21805631972).

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

16004133280 is a wasteful number, since it uses less digits than its factorization.

16004133280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100025848 (or 100025840 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 16004133280 in words is "sixteen billion, four million, one hundred thirty-three thousand, two hundred eighty".