13220354240144 has 40 divisors (see below), whose sum is σ = 26211151649760. Its totient is φ = 6456198163968.

The previous prime is 13220354240117. The next prime is 13220354240161. The reversal of 13220354240144 is 44104245302231.

It is a super-2 number, since 2×13220354240144² (a number of 27 digits) contains 22 as substring.

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, 17762072 + ... + 18491400.

It is an arithmetic number, because the mean of its divisors is an integer number (655278791244).

Almost surely, 2^{13220354240144} is an apocalyptic number.

It is an amenable number.

13220354240144 is a deficient number, since it is larger than the sum of its proper divisors (12990797409616).

13220354240144 is a wasteful number, since it uses less digits than its factorization.

13220354240144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755727 (or 755721 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 13220354240144 its reverse (44104245302231), we get a palindrome (57324599542375).

The spelling of 13220354240144 in words is "thirteen trillion, two hundred twenty billion, three hundred fifty-four million, two hundred forty thousand, one hundred forty-four".