16065520 has 40 divisors (see below), whose sum is σ = 37519920. Its totient is φ = 6397440.

The previous prime is 16065503. The next prime is 16065521. The reversal of 16065520 is 2556061.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16065521) 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 7 ways as a sum of consecutive naturals, for example, 32475 + ... + 32965.

It is an arithmetic number, because the mean of its divisors is an integer number (937998).

Almost surely, 2^16065520 is an apocalyptic number.

16065520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16065520 is an abundant number, since it is smaller than the sum of its proper divisors (21454400).

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

16065520 is a wasteful number, since it uses less digits than its factorization.

16065520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 16065520 is about 4008.1816326110. The cubic root of 16065520 is about 252.3276999875.

The spelling of 16065520 in words is "sixteen million, sixty-five thousand, five hundred twenty".