16327985436 has 36 divisors (see below), whose sum is σ = 47169736432. Its totient is φ = 4665138624.

The previous prime is 16327985431. The next prime is 16327985437. The reversal of 16327985436 is 63458972361.

16327985436 is a `hidden beast` number, since 1 + 6 + 3 + 2 + 7 + 98 + 543 + 6 = 666.

16327985436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×16327985436² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16327985431) by changing a digit.

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, 32396545 + ... + 32397048.

Almost surely, 2^16327985436 is an apocalyptic number.

It is an amenable number.

16327985436 is an abundant number, since it is smaller than the sum of its proper divisors (30841750996).

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

16327985436 is a wasteful number, since it uses less digits than its factorization.

16327985436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64793610 (or 64793605 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 16327985436 in words is "sixteen billion, three hundred twenty-seven million, nine hundred eighty-five thousand, four hundred thirty-six".