63413335361640 has 128 divisors (see below), whose sum is σ = 207583784104320. Its totient is φ = 15369282969600.

The previous prime is 63413335361633. The next prime is 63413335361683. The reversal of 63413335361640 is 4616353331436.

It is a super-2 number, since 2×63413335361640² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63413335361640.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129601 + ... + 11262480.

It is an arithmetic number, because the mean of its divisors is an integer number (1621748313315).

Almost surely, 2^{63413335361640} is an apocalyptic number.

63413335361640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63413335361640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103791892052160).

63413335361640 is an abundant number, since it is smaller than the sum of its proper divisors (144170448742680).

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

63413335361640 is a wasteful number, since it uses less digits than its factorization.

63413335361640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11396323 (or 11396319 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 48.

The spelling of 63413335361640 in words is "sixty-three trillion, four hundred thirteen billion, three hundred thirty-five million, three hundred sixty-one thousand, six hundred forty".