13643453550720 has 1024 divisors, whose sum is σ = 53640481996800. Its totient is φ = 2882252685312.

The previous prime is 13643453550719. The next prime is 13643453550739. The reversal of 13643453550720 is 2705535434631.

It is a super-2 number, since 2×13643453550720² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 13643453550720.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1147756617 + ... + 1147768503.

It is an arithmetic number, because the mean of its divisors is an integer number (52383283200).

Almost surely, 2^{13643453550720} is an apocalyptic number.

13643453550720 is a gapful number since it is divisible by the number (10) 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 13643453550720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26820240998400).

13643453550720 is an abundant number, since it is smaller than the sum of its proper divisors (39997028446080).

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

13643453550720 is a wasteful number, since it uses less digits than its factorization.

13643453550720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12065 (or 12053 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 48.

The spelling of 13643453550720 in words is "thirteen trillion, six hundred forty-three billion, four hundred fifty-three million, five hundred fifty thousand, seven hundred twenty".