53399553616 has 20 divisors (see below), whose sum is σ = 103467391924. Its totient is φ = 26698291200.

The previous prime is 53399553589. The next prime is 53399553653. The reversal of 53399553616 is 61635599335.

It can be written as a sum of positive squares in 2 ways, for example, as 16728835600 + 36670718016 = 129340^2 + 191496^2 .

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 239806 + ... + 405346.

Almost surely, 2^53399553616 is an apocalyptic number.

It is an amenable number.

53399553616 is a deficient number, since it is larger than the sum of its proper divisors (50067838308).

53399553616 is a wasteful number, since it uses less digits than its factorization.

53399553616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185710 (or 185704 counting only the distinct ones).

The product of its digits is 9841500, while the sum is 55.

The spelling of 53399553616 in words is "fifty-three billion, three hundred ninety-nine million, five hundred fifty-three thousand, six hundred sixteen".