15553361123426 has 8 divisors (see below), whose sum is σ = 26662904783040. Its totient is φ = 6665726195748.

The previous prime is 15553361123407. The next prime is 15553361123437. The reversal of 15553361123426 is 62432116335551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555477182966 + ... + 555477182993.

It is an arithmetic number, because the mean of its divisors is an integer number (3332863097880).

Almost surely, 2^{15553361123426} is an apocalyptic number.

15553361123426 is a deficient number, since it is larger than the sum of its proper divisors (11109543659614).

15553361123426 is a wasteful number, since it uses less digits than its factorization.

15553361123426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110954365968.

The product of its digits is 1944000, while the sum is 47.

Adding to 15553361123426 its reverse (62432116335551), we get a palindrome (77985477458977).

It can be divided in two parts, 1555336 and 1123426, that added together give a palindrome (2678762).

The spelling of 15553361123426 in words is "fifteen trillion, five hundred fifty-three billion, three hundred sixty-one million, one hundred twenty-three thousand, four hundred twenty-six".