16545612 has 12 divisors (see below), whose sum is σ = 38606456. Its totient is φ = 5515200.

The previous prime is 16545601. The next prime is 16545619. The reversal of 16545612 is 21654561.

It is a tau number, because it is divible by the number of its divisors (12).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 16545612.

It is not an unprimeable number, because it can be changed into a prime (16545619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689389 + ... + 689412.

Almost surely, 2^16545612 is an apocalyptic number.

16545612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16545612 is an abundant number, since it is smaller than the sum of its proper divisors (22060844).

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

16545612 is a wasteful number, since it uses less digits than its factorization.

16545612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378808 (or 1378806 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 16545612 is about 4067.6297766636. The cubic root of 16545612 is about 254.8165385504.

The spelling of 16545612 in words is "sixteen million, five hundred forty-five thousand, six hundred twelve".