663001115260 has 144 divisors (see below), whose sum is σ = 1614345062400. Its totient is φ = 227917895040.

The previous prime is 663001115239. The next prime is 663001115363. The reversal of 663001115260 is 62511100366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22009369 + ... + 22039471.

It is an arithmetic number, because the mean of its divisors is an integer number (11210729600).

Almost surely, 2^663001115260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663001115260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (807172531200).

663001115260 is an abundant number, since it is smaller than the sum of its proper divisors (951343947140).

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

663001115260 is a wasteful number, since it uses less digits than its factorization.

663001115260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30632 (or 30619 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 663001115260 in words is "six hundred sixty-three billion, one million, one hundred fifteen thousand, two hundred sixty".