16506143612 has 12 divisors (see below), whose sum is σ = 33012287280. Its totient is φ = 7074061536.

The previous prime is 16506143611. The next prime is 16506143623. The reversal of 16506143612 is 21634160561.

16506143612 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16506143611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294752537 + ... + 294752592.

It is an arithmetic number, because the mean of its divisors is an integer number (2751023940).

Almost surely, 2^16506143612 is an apocalyptic number.

It is an amenable number.

16506143612 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16506143612 is a wasteful number, since it uses less digits than its factorization.

16506143612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589505140 (or 589505138 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 16506143612 in words is "sixteen billion, five hundred six million, one hundred forty-three thousand, six hundred twelve".