63724602216640 has 112 divisors (see below), whose sum is σ = 154074957040224. Its totient is φ = 25098649804800.

The previous prime is 63724602216623. The next prime is 63724602216659. The reversal of 63724602216640 is 4661220642736.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49556220 + ... + 50825860.

Almost surely, 2^{63724602216640} 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 63724602216640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77037478520112).

63724602216640 is an abundant number, since it is smaller than the sum of its proper divisors (90350354823584).

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

63724602216640 is a wasteful number, since it uses less digits than its factorization.

63724602216640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272066 (or 1272056 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 49.

The spelling of 63724602216640 in words is "sixty-three trillion, seven hundred twenty-four billion, six hundred two million, two hundred sixteen thousand, six hundred forty".