16065616 has 20 divisors (see below), whose sum is σ = 35574112. Its totient is φ = 6885216.

The previous prime is 16065611. The next prime is 16065649. The reversal of 16065616 is 61656061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16065611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71610 + ... + 71833.

Almost surely, 2^16065616 is an apocalyptic number.

16065616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16065616 is an abundant number, since it is smaller than the sum of its proper divisors (19508496).

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

16065616 is a wasteful number, since it uses less digits than its factorization.

16065616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143458 (or 143452 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 16065616 is about 4008.1936080983. The cubic root of 16065616 is about 252.3282025838.

The spelling of 16065616 in words is "sixteen million, sixty-five thousand, six hundred sixteen".