13404244155 has 16 divisors (see below), whose sum is σ = 21467577120. Its totient is φ = 7142001408.

The previous prime is 13404244109. The next prime is 13404244169. The reversal of 13404244155 is 55144240431.

It is a happy number.

It is not a de Polignac number, because 13404244155 - 2⁷ = 13404244027 is a prime.

It is a super-2 number, since 2×13404244155² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417040 + ... + 448029.

It is an arithmetic number, because the mean of its divisors is an integer number (1341723570).

Almost surely, 2^13404244155 is an apocalyptic number.

13404244155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13404244155 is a deficient number, since it is larger than the sum of its proper divisors (8063332965).

13404244155 is a wasteful number, since it uses less digits than its factorization.

13404244155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866110.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 13404244155 its reverse (55144240431), we get a palindrome (68548484586).

The spelling of 13404244155 in words is "thirteen billion, four hundred four million, two hundred forty-four thousand, one hundred fifty-five".