663060 has 48 divisors (see below), whose sum is σ = 1907136. Its totient is φ = 172032.

The previous prime is 663053. The next prime is 663071. The reversal of 663060 is 60366.

It is a congruent number.

It is an unprimeable number.

663060 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2452 + ... + 2708.

It is an arithmetic number, because the mean of its divisors is an integer number (39732).

2⁶⁶³⁰⁶⁰ is an apocalyptic number.

663060 is a gapful number since it is divisible by the number (60) 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 663060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (953568).

663060 is an abundant number, since it is smaller than the sum of its proper divisors (1244076).

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

663060 is a wasteful number, since it uses less digits than its factorization.

663060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 663060 is about 814.2849624057. The cubic root of 663060 is about 87.2002258502.

The spelling of 663060 in words is "six hundred sixty-three thousand, sixty".