663136313504 has 96 divisors (see below), whose sum is σ = 1540589331456. Its totient is φ = 274961756160.

The previous prime is 663136313461. The next prime is 663136313509. The reversal of 663136313504 is 405313631366.

It is not an unprimeable number, because it can be changed into a prime (663136313509) 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, 32855864 + ... + 32876040.

It is an arithmetic number, because the mean of its divisors is an integer number (16047805536).

Almost surely, 2^663136313504 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 663136313504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (770294665728).

663136313504 is an abundant number, since it is smaller than the sum of its proper divisors (877453017952).

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

663136313504 is a wasteful number, since it uses less digits than its factorization.

663136313504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24958 (or 24950 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 41.

The spelling of 663136313504 in words is "six hundred sixty-three billion, one hundred thirty-six million, three hundred thirteen thousand, five hundred four".