16660560 has 160 divisors (see below), whose sum is σ = 60567552. Its totient is φ = 3709440.

The previous prime is 16660543. The next prime is 16660577. The reversal of 16660560 is 6506661.

16660560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16660543) and next prime (16660577).

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, 78855 + ... + 79065.

Almost surely, 2^16660560 is an apocalyptic number.

16660560 is a gapful number since it is divisible by the number (10) 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 16660560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30283776).

16660560 is an abundant number, since it is smaller than the sum of its proper divisors (43906992).

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

16660560 is a wasteful number, since it uses less digits than its factorization.

16660560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 275 counting only the distinct ones).

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

The square root of 16660560 is about 4081.7349252493. The cubic root of 16660560 is about 255.4052763451.

It can be divided in two parts, 166 and 60560, that added together give a triangular number (60726 = T₃₄₈).

The spelling of 16660560 in words is "sixteen million, six hundred sixty thousand, five hundred sixty".