56016660 has 96 divisors (see below), whose sum is σ = 183681792. Its totient is φ = 12487680.

The previous prime is 56016641. The next prime is 56016673. The reversal of 56016660 is 6661065.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15594 + ... + 18846.

It is an arithmetic number, because the mean of its divisors is an integer number (1913352).

Almost surely, 2^56016660 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 56016660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91840896).

56016660 is an abundant number, since it is smaller than the sum of its proper divisors (127665132).

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

56016660 is a wasteful number, since it uses less digits than its factorization.

56016660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313 (or 3311 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 56016660 is about 7484.4278338427. The cubic root of 56016660 is about 382.6241725945.

The spelling of 56016660 in words is "fifty-six million, sixteen thousand, six hundred sixty".