55655516320 has 48 divisors (see below), whose sum is σ = 132963563880. Its totient is φ = 22012063744.

The previous prime is 55655516179. The next prime is 55655516327. The reversal of 55655516320 is 2361555655.

It can be written as a sum of positive squares in 4 ways, for example, as 16370690704 + 39284825616 = 127948^2 + 198204^2 .

It is not an unprimeable number, because it can be changed into a prime (55655516327) 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 7 ways as a sum of consecutive naturals, for example, 1939957 + ... + 1968436.

Almost surely, 2^55655516320 is an apocalyptic number.

It is an amenable number.

55655516320 is an abundant number, since it is smaller than the sum of its proper divisors (77308047560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55655516320 is a wasteful number, since it uses less digits than its factorization.

55655516320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908497 (or 3908489 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 43.

The spelling of 55655516320 in words is "fifty-five billion, six hundred fifty-five million, five hundred sixteen thousand, three hundred twenty".