13550331155 has 8 divisors (see below), whose sum is σ = 16404295392. Its totient is φ = 10744332928.

The previous prime is 13550331149. The next prime is 13550331161. The reversal of 13550331155 is 55113305531.

It is a happy number.

13550331155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13550331149) and next prime (13550331161).

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

It is a cyclic number.

It is not a de Polignac number, because 13550331155 - 2¹² = 13550327059 is a prime.

It is a super-2 number, since 2×13550331155² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 11990879 + ... + 11992008.

It is an arithmetic number, because the mean of its divisors is an integer number (2050536924).

Almost surely, 2^13550331155 is an apocalyptic number.

13550331155 is a deficient number, since it is larger than the sum of its proper divisors (2853964237).

13550331155 is a wasteful number, since it uses less digits than its factorization.

13550331155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23983005.

The product of its (nonzero) digits is 16875, while the sum is 32.

Adding to 13550331155 its reverse (55113305531), we get a palindrome (68663636686).

The spelling of 13550331155 in words is "thirteen billion, five hundred fifty million, three hundred thirty-one thousand, one hundred fifty-five".