33125315144 has 16 divisors (see below), whose sum is σ = 62123395500. Its totient is φ = 16559076352.

The previous prime is 33125315137. The next prime is 33125315149. The reversal of 33125315144 is 44151352133.

It can be written as a sum of positive squares in 2 ways, for example, as 27599176900 + 5526138244 = 166130^2 + 74338^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 33125315144.

It is not an unprimeable number, because it can be changed into a prime (33125315149) by changing a digit.

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, 408137 + ... + 482520.

Almost surely, 2^33125315144 is an apocalyptic number.

It is an amenable number.

33125315144 is a deficient number, since it is larger than the sum of its proper divisors (28998080356).

33125315144 is a wasteful number, since it uses less digits than its factorization.

33125315144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895312 (or 895308 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

Adding to 33125315144 its reverse (44151352133), we get a palindrome (77276667277).

The spelling of 33125315144 in words is "thirty-three billion, one hundred twenty-five million, three hundred fifteen thousand, one hundred forty-four".