16539116 has 48 divisors (see below), whose sum is σ = 33626880. Its totient is φ = 7043520.

The previous prime is 16539091. The next prime is 16539119. The reversal of 16539116 is 61193561.

It is a happy number.

It is a super-2 number, since 2×16539116² = 547084716122912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16539119) 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, 59570 + ... + 59846.

It is an arithmetic number, because the mean of its divisors is an integer number (700560).

Almost surely, 2^16539116 is an apocalyptic number.

It is an amenable number.

16539116 is an abundant number, since it is smaller than the sum of its proper divisors (17087764).

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

16539116 is a wasteful number, since it uses less digits than its factorization.

16539116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 372 counting only the distinct ones).

The product of its digits is 4860, while the sum is 32.

The square root of 16539116 is about 4066.8311988574. The cubic root of 16539116 is about 254.7831862048.

The spelling of 16539116 in words is "sixteen million, five hundred thirty-nine thousand, one hundred sixteen".