16000056 has 48 divisors (see below), whose sum is σ = 44055960. Its totient is φ = 5244480.

The previous prime is 15999989. The next prime is 16000057. The reversal of 16000056 is 65000061.

16000056 is nontrivially palindromic in base 7.

It is a Harshad number since it is a multiple of its sum of digits (18).

16000056 is a modest number, since divided by 56 gives 16 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16000057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2571 + ... + 6213.

Almost surely, 2^16000056 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 16000056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22027980).

16000056 is an abundant number, since it is smaller than the sum of its proper divisors (28055904).

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

16000056 is a wasteful number, since it uses less digits than its factorization.

16000056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716 (or 3709 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 16000056 is about 4000.0069999939. The cubic root of 16000056 is about 251.9845039602.

The spelling of 16000056 in words is "sixteen million, fifty-six", and thus it is an aban number and an uban number.