16532643 has 4 divisors (see below), whose sum is σ = 22043528. Its totient is φ = 11021760.

The previous prime is 16532627. The next prime is 16532651. The reversal of 16532643 is 34623561.

16532643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16532643 - 2⁴ = 16532627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16532643.

It is not an unprimeable number, because it can be changed into a prime (16532623) 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, 2755438 + ... + 2755443.

It is an arithmetic number, because the mean of its divisors is an integer number (5510882).

Almost surely, 2^16532643 is an apocalyptic number.

16532643 is a deficient number, since it is larger than the sum of its proper divisors (5510885).

16532643 is an equidigital number, since it uses as much as digits as its factorization.

16532643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5510884.

The product of its digits is 12960, while the sum is 30.

The square root of 16532643 is about 4066.0352925178. The cubic root of 16532643 is about 254.7499432599.

The spelling of 16532643 in words is "sixteen million, five hundred thirty-two thousand, six hundred forty-three".