663260598 has 192 divisors, whose sum is σ = 1951133184. Its totient is φ = 157248000.

The previous prime is 663260597. The next prime is 663260621. The reversal of 663260598 is 895062366.

It is a happy number.

663260598 is a `hidden beast` number, since 6 + 6 + 32 + 605 + 9 + 8 = 666.

663260598 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663260597) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2360218 + ... + 2360498.

It is an arithmetic number, because the mean of its divisors is an integer number (10162152).

Almost surely, 2^663260598 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663260598, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (975566592).

663260598 is an abundant number, since it is smaller than the sum of its proper divisors (1287872586).

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

663260598 is a wasteful number, since it uses less digits than its factorization.

663260598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 663260598 is about 25753.8462758478. The cubic root of 663260598 is about 872.0901863277.

The spelling of 663260598 in words is "six hundred sixty-three million, two hundred sixty thousand, five hundred ninety-eight".