15455344145 has 4 divisors (see below), whose sum is σ = 18546412980. Its totient is φ = 12364275312.

The previous prime is 15455344087. The next prime is 15455344153. The reversal of 15455344145 is 54144355451.

15455344145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54144355451 = 43 ⋅1259171057.

It can be written as a sum of positive squares in 2 ways, for example, as 10559823121 + 4895521024 = 102761^2 + 69968^2 .

It is a cyclic number.

It is not a de Polignac number, because 15455344145 - 2⁶ = 15455344081 is a prime.

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, 1545534410 + ... + 1545534419.

It is an arithmetic number, because the mean of its divisors is an integer number (4636603245).

Almost surely, 2^15455344145 is an apocalyptic number.

It is an amenable number.

15455344145 is a deficient number, since it is larger than the sum of its proper divisors (3091068835).

15455344145 is an equidigital number, since it uses as much as digits as its factorization.

15455344145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091068834.

The product of its digits is 480000, while the sum is 41.

Adding to 15455344145 its reverse (54144355451), we get a palindrome (69599699596).

The spelling of 15455344145 in words is "fifteen billion, four hundred fifty-five million, three hundred forty-four thousand, one hundred forty-five".