63446623716 has 96 divisors (see below), whose sum is σ = 171209687040. Its totient is φ = 17912592000.

The previous prime is 63446623703. The next prime is 63446623717. The reversal of 63446623716 is 61732664436.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (63446623717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2409550 + ... + 2435738.

It is an arithmetic number, because the mean of its divisors is an integer number (1783434240).

Almost surely, 2^63446623716 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 63446623716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85604843520).

63446623716 is an abundant number, since it is smaller than the sum of its proper divisors (107763063324).

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

63446623716 is a wasteful number, since it uses less digits than its factorization.

63446623716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26545 (or 26543 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 48.

The spelling of 63446623716 in words is "sixty-three billion, four hundred forty-six million, six hundred twenty-three thousand, seven hundred sixteen".