55660213384 has 32 divisors (see below), whose sum is σ = 106082595000. Its totient is φ = 27374764032.

The previous prime is 55660213379. The next prime is 55660213391. The reversal of 55660213384 is 48331206655.

It can be written as a sum of positive squares in 4 ways, for example, as 46430768484 + 9229444900 = 215478^2 + 96070^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55660213384.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65109 + ... + 339940.

Almost surely, 2^55660213384 is an apocalyptic number.

It is an amenable number.

55660213384 is a deficient number, since it is larger than the sum of its proper divisors (50422381616).

55660213384 is a wasteful number, since it uses less digits than its factorization.

55660213384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405337 (or 405333 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 55660213384 in words is "fifty-five billion, six hundred sixty million, two hundred thirteen thousand, three hundred eighty-four".