63573401104640 has 288 divisors, whose sum is σ = 181097806095360. Its totient is φ = 20928847306752.

The previous prime is 63573401104637. The next prime is 63573401104649. The reversal of 63573401104640 is 4640110437536.

It is a super-2 number, since 2×63573401104640² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63573401104591 and 63573401104600.

It is not an unprimeable number, because it can be changed into a prime (63573401104649) 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, 21333167 + ... + 24129873.

It is an arithmetic number, because the mean of its divisors is an integer number (628811826720).

Almost surely, 2^{63573401104640} 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 63573401104640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90548903047680).

63573401104640 is an abundant number, since it is smaller than the sum of its proper divisors (117524404990720).

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

63573401104640 is a wasteful number, since it uses less digits than its factorization.

63573401104640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796837 (or 2796823 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 63573401104640 in words is "sixty-three trillion, five hundred seventy-three billion, four hundred one million, one hundred four thousand, six hundred forty".