13551421653354 has 128 divisors (see below), whose sum is σ = 30861960450048. Its totient is φ = 3935585364480.

The previous prime is 13551421653269. The next prime is 13551421653401. The reversal of 13551421653354 is 45335612415531.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51793249 + ... + 52054235.

It is an arithmetic number, because the mean of its divisors is an integer number (241109066016).

Almost surely, 2^{13551421653354} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13551421653354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15430980225024).

13551421653354 is an abundant number, since it is smaller than the sum of its proper divisors (17310538796694).

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

13551421653354 is a wasteful number, since it uses less digits than its factorization.

13551421653354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261412.

The product of its digits is 3240000, while the sum is 48.

The spelling of 13551421653354 in words is "thirteen trillion, five hundred fifty-one billion, four hundred twenty-one million, six hundred fifty-three thousand, three hundred fifty-four".