16538066 has 16 divisors (see below), whose sum is σ = 25785600. Its totient is φ = 7946640.

The previous prime is 16538057. The next prime is 16538087. The reversal of 16538066 is 66083561.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8885 + ... + 10583.

It is an arithmetic number, because the mean of its divisors is an integer number (1611600).

Almost surely, 2^16538066 is an apocalyptic number.

16538066 is a deficient number, since it is larger than the sum of its proper divisors (9247534).

16538066 is a wasteful number, since it uses less digits than its factorization.

16538066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889.

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

The square root of 16538066 is about 4066.7021036707. The cubic root of 16538066 is about 254.7777943808. Note that the first 4 decimals are identical.

The spelling of 16538066 in words is "sixteen million, five hundred thirty-eight thousand, sixty-six".