16482143538 has 48 divisors (see below), whose sum is σ = 41048894016. Its totient is φ = 4681956960.

The previous prime is 16482143507. The next prime is 16482143539. The reversal of 16482143538 is 83534128461.

16482143538 is a `hidden beast` number, since 16 + 48 + 21 + 43 + 538 = 666.

It is a super-2 number, since 2×16482143538² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16482143493 and 16482143502.

It is not an unprimeable number, because it can be changed into a prime (16482143539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356268 + ... + 399863.

It is an arithmetic number, because the mean of its divisors is an integer number (855185292).

Almost surely, 2^16482143538 is an apocalyptic number.

16482143538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16482143538 is an abundant number, since it is smaller than the sum of its proper divisors (24566750478).

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

16482143538 is a wasteful number, since it uses less digits than its factorization.

16482143538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756319 (or 756316 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The spelling of 16482143538 in words is "sixteen billion, four hundred eighty-two million, one hundred forty-three thousand, five hundred thirty-eight".