1660068 has 48 divisors (see below), whose sum is σ = 4536000. Its totient is φ = 523584.

The previous prime is 1660063. The next prime is 1660069. The reversal of 1660068 is 8600661.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1660063) 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, 1648 + ... + 2456.

It is an arithmetic number, because the mean of its divisors is an integer number (94500).

2^1660068 is an apocalyptic number.

1660068 is a gapful number since it is divisible by the number (18) 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 1660068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2268000).

1660068 is an abundant number, since it is smaller than the sum of its proper divisors (2875932).

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

1660068 is a wasteful number, since it uses less digits than its factorization.

1660068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1660068 is about 1288.4362615201. The cubic root of 1660068 is about 118.4064315048.

The spelling of 1660068 in words is "one million, six hundred sixty thousand, sixty-eight".