13405541223551 has 16 divisors (see below), whose sum is σ = 13674207165696. Its totient is φ = 13137466807296.

The previous prime is 13405541223533. The next prime is 13405541223577. The reversal of 13405541223551 is 15532214550431.

13405541223551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13405541223551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13405541223499 and 13405541223508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13405541223751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163534991 + ... + 163616943.

It is an arithmetic number, because the mean of its divisors is an integer number (854637947856).

Almost surely, 2^{13405541223551} is an apocalyptic number.

13405541223551 is a deficient number, since it is larger than the sum of its proper divisors (268665942145).

13405541223551 is a wasteful number, since it uses less digits than its factorization.

13405541223551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85522.

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 13405541223551 its reverse (15532214550431), we get a palindrome (28937755773982).

The spelling of 13405541223551 in words is "thirteen trillion, four hundred five billion, five hundred forty-one million, two hundred twenty-three thousand, five hundred fifty-one".