14155121444 has 12 divisors (see below), whose sum is σ = 25625651100. Its totient is φ = 6833506848.

The previous prime is 14155121411. The next prime is 14155121509. The reversal of 14155121444 is 44412155141.

It can be written as a sum of positive squares in 2 ways, for example, as 4551121444 + 9604000000 = 67462^2 + 98000^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 14155121444.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61013339 + ... + 61013570.

It is an arithmetic number, because the mean of its divisors is an integer number (2135470925).

Almost surely, 2^14155121444 is an apocalyptic number.

It is an amenable number.

14155121444 is a deficient number, since it is larger than the sum of its proper divisors (11470529656).

14155121444 is a wasteful number, since it uses less digits than its factorization.

14155121444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122026942 (or 122026940 counting only the distinct ones).

The product of its digits is 12800, while the sum is 32.

Adding to 14155121444 its reverse (44412155141), we get a palindrome (58567276585).

The spelling of 14155121444 in words is "fourteen billion, one hundred fifty-five million, one hundred twenty-one thousand, four hundred forty-four".