15656016 has 40 divisors (see below), whose sum is σ = 41115424. Its totient is φ = 5132160.

The previous prime is 15655993. The next prime is 15656033. The reversal of 15656016 is 61065651.

15656016 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15656016² = 490221673984512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255 + ... + 5601.

Almost surely, 2^15656016 is an apocalyptic number.

15656016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15656016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20557712).

15656016 is an abundant number, since it is smaller than the sum of its proper divisors (25459408).

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

15656016 is a wasteful number, since it uses less digits than its factorization.

15656016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5419 (or 5413 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 15656016 is about 3956.7683783613. The cubic root of 15656016 is about 250.1653093339.

The spelling of 15656016 in words is "fifteen million, six hundred fifty-six thousand, sixteen".