15965016 has 64 divisors (see below), whose sum is σ = 42470400. Its totient is φ = 4987008.

The previous prime is 15965011. The next prime is 15965017. The reversal of 15965016 is 61056951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15965011) 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, 71481 + ... + 71703.

It is an arithmetic number, because the mean of its divisors is an integer number (663600).

Almost surely, 2^15965016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15965016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21235200).

15965016 is an abundant number, since it is smaller than the sum of its proper divisors (26505384).

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

15965016 is a wasteful number, since it uses less digits than its factorization.

15965016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 15965016 is about 3995.6246069920. The cubic root of 15965016 is about 251.8004214709.

The spelling of 15965016 in words is "fifteen million, nine hundred sixty-five thousand, sixteen".