13405550215044 has 96 divisors (see below), whose sum is σ = 35466683822080. Its totient is φ = 3906808184448.

The previous prime is 13405550215009. The next prime is 13405550215097. The reversal of 13405550215044 is 44051205550431.

13405550215044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 13405550214993 and 13405550215011.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12672387 + ... + 13689429.

Almost surely, 2^{13405550215044} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13405550215044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17733341911040).

13405550215044 is an abundant number, since it is smaller than the sum of its proper divisors (22061133607036).

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

13405550215044 is a wasteful number, since it uses less digits than its factorization.

13405550215044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021529 (or 1021527 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

Adding to 13405550215044 its reverse (44051205550431), we get a palindrome (57456755765475).

The spelling of 13405550215044 in words is "thirteen trillion, four hundred five billion, five hundred fifty million, two hundred fifteen thousand, forty-four".