13505214144 has 56 divisors (see below), whose sum is σ = 35750530480. Its totient is φ = 4499472384.

The previous prime is 13505214113. The next prime is 13505214157. The reversal of 13505214144 is 44141250531.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389052 + ... + 422340.

It is an arithmetic number, because the mean of its divisors is an integer number (638402330).

Almost surely, 2^13505214144 is an apocalyptic number.

It is an amenable number.

13505214144 is an abundant number, since it is smaller than the sum of its proper divisors (22245316336).

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

13505214144 is a wasteful number, since it uses less digits than its factorization.

13505214144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35417 (or 35407 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 13505214144 its reverse (44141250531), we get a palindrome (57646464675).

The spelling of 13505214144 in words is "thirteen billion, five hundred five million, two hundred fourteen thousand, one hundred forty-four".