16545648 has 80 divisors (see below), whose sum is σ = 50996736. Its totient is φ = 4519680.

The previous prime is 16545643. The next prime is 16545649. The reversal of 16545648 is 84654561.

It is a happy number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6658 + ... + 8798.

Almost surely, 2^16545648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16545648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25498368).

16545648 is an abundant number, since it is smaller than the sum of its proper divisors (34451088).

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

16545648 is a wasteful number, since it uses less digits than its factorization.

16545648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182 (or 2176 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 16545648 is about 4067.6342018426. The cubic root of 16545648 is about 254.8167233605.

The spelling of 16545648 in words is "sixteen million, five hundred forty-five thousand, six hundred forty-eight".