It is a congruent number.
It is an unprimeable number.
Almost surely, 21554013354040 is an apocalyptic number.
1554013354040 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 1554013354040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2096295292800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1554013354040 is a wasteful number, since it uses less digits than its factorization.
1554013354040 is an odious number, because the sum of its binary digits is odd.
Adding to 1554013354040 its reverse (404533104551), we get a palindrome (1958546458591).
The spelling of 1554013354040 in words is "one trillion, five hundred fifty-four billion, thirteen million, three hundred fifty-four thousand, forty".