663016 has 16 divisors (see below), whose sum is σ = 1252800. Its totient is φ = 328944.

The previous prime is 663007. The next prime is 663031. The reversal of 663016 is 610366.

663016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

663016 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 3 ways as a sum of consecutive naturals, for example, 1201 + ... + 1663.

It is an arithmetic number, because the mean of its divisors is an integer number (78300).

2⁶⁶³⁰¹⁶ is an apocalyptic number.

It is an amenable number.

663016 is a deficient number, since it is larger than the sum of its proper divisors (589784).

663016 is a wasteful number, since it uses less digits than its factorization.

663016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 663016 is about 814.2579443886. The cubic root of 663016 is about 87.1982969676.

Subtracting from 663016 its reverse (610366), we obtain a triangular number (52650 = T₃₂₄).

The spelling of 663016 in words is "six hundred sixty-three thousand, sixteen".