16555065 has 16 divisors (see below), whose sum is σ = 26725248. Its totient is φ = 8750336.

The previous prime is 16555051. The next prime is 16555069. The reversal of 16555065 is 56055561.

It is a cyclic number.

It is not a de Polignac number, because 16555065 - 2¹⁴ = 16538681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16555069) 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, 3189 + ... + 6578.

It is an arithmetic number, because the mean of its divisors is an integer number (1670328).

Almost surely, 2^16555065 is an apocalyptic number.

16555065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16555065 is a deficient number, since it is larger than the sum of its proper divisors (10170183).

16555065 is a wasteful number, since it uses less digits than its factorization.

16555065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9888.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 16555065 is about 4068.7915896492. The cubic root of 16555065 is about 254.8650573994.

The spelling of 16555065 in words is "sixteen million, five hundred fifty-five thousand, sixty-five".