13440630201544 has 128 divisors (see below), whose sum is σ = 31752406425600. Its totient is φ = 5191615376640.

The previous prime is 13440630201533. The next prime is 13440630201623. The reversal of 13440630201544 is 44510203604431.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13867749 + ... + 14805259.

It is an arithmetic number, because the mean of its divisors is an integer number (248065675200).

Almost surely, 2^{13440630201544} is an apocalyptic number.

13440630201544 is a gapful number since it is divisible by the number (14) 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 13440630201544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15876203212800).

13440630201544 is an abundant number, since it is smaller than the sum of its proper divisors (18311776224056).

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

13440630201544 is a wasteful number, since it uses less digits than its factorization.

13440630201544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938003 (or 937999 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 13440630201544 its reverse (44510203604431), we get a palindrome (57950833805975).

The spelling of 13440630201544 in words is "thirteen trillion, four hundred forty billion, six hundred thirty million, two hundred one thousand, five hundred forty-four".