16540616 has 16 divisors (see below), whose sum is σ = 31674240. Its totient is φ = 8094160.

The previous prime is 16540613. The next prime is 16540619. The reversal of 16540616 is 61604561.

It is an interprime number because it is at equal distance from previous prime (16540613) and next prime (16540619).

It is not an unprimeable number, because it can be changed into a prime (16540613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21620 + ... + 22371.

It is an arithmetic number, because the mean of its divisors is an integer number (1979640).

Almost surely, 2^16540616 is an apocalyptic number.

It is an amenable number.

16540616 is a deficient number, since it is larger than the sum of its proper divisors (15133624).

16540616 is a wasteful number, since it uses less digits than its factorization.

16540616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44044 (or 44040 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 16540616 is about 4067.0156134443. The cubic root of 16540616 is about 254.7908884146.

The spelling of 16540616 in words is "sixteen million, five hundred forty thousand, six hundred sixteen".