16540533325 has 12 divisors (see below), whose sum is σ = 20513949300. Its totient is φ = 13230047360.

The previous prime is 16540533311. The next prime is 16540533371. The reversal of 16540533325 is 52333504561.

16540533325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1514922084 + 15025611241 = 38922^2 + 122579^2 .

It is not a de Polignac number, because 16540533325 - 2²⁹ = 16003662413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89667 + ... + 202783.

It is an arithmetic number, because the mean of its divisors is an integer number (1709495775).

Almost surely, 2^16540533325 is an apocalyptic number.

It is an amenable number.

16540533325 is a deficient number, since it is larger than the sum of its proper divisors (3973415975).

16540533325 is a wasteful number, since it uses less digits than its factorization.

16540533325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118976 (or 118971 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 37.

The spelling of 16540533325 in words is "sixteen billion, five hundred forty million, five hundred thirty-three thousand, three hundred twenty-five".