13155243424434 has 32 divisors (see below), whose sum is σ = 29645618993280. Its totient is φ = 4323319434000.

The previous prime is 13155243424333. The next prime is 13155243424481. The reversal of 13155243424434 is 43442434255131.

It is a happy number.

13155243424434 is a `hidden beast` number, since 1 + 3 + 1 + 552 + 4 + 34 + 24 + 43 + 4 = 666.

It is a super-2 number, since 2×13155243424434² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13155243424434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1715599117 + ... + 1715606784.

It is an arithmetic number, because the mean of its divisors is an integer number (926425593540).

Almost surely, 2^{13155243424434} is an apocalyptic number.

13155243424434 is an abundant number, since it is smaller than the sum of its proper divisors (16490375568846).

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

13155243424434 is a wasteful number, since it uses less digits than its factorization.

13155243424434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3431205983 (or 3431205977 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 45.

Adding to 13155243424434 its reverse (43442434255131), we get a palindrome (56597677679565).

The spelling of 13155243424434 in words is "thirteen trillion, one hundred fifty-five billion, two hundred forty-three million, four hundred twenty-four thousand, four hundred thirty-four".