55645267338 has 48 divisors (see below), whose sum is σ = 124821314280. Its totient is φ = 17894583168.

The previous prime is 55645267331. The next prime is 55645267351. The reversal of 55645267338 is 83376254655.

55645267338 is a `hidden beast` number, since 5 + 5 + 6 + 45 + 267 + 338 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 55504061649 + 141205689 = 235593^2 + 11883^2 .

It is not an unprimeable number, because it can be changed into a prime (55645267331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 624856 + ... + 708332.

Almost surely, 2^55645267338 is an apocalyptic number.

55645267338 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

55645267338 is an abundant number, since it is smaller than the sum of its proper divisors (69176046942).

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

55645267338 is a wasteful number, since it uses less digits than its factorization.

55645267338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84791 (or 84788 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 54.

The spelling of 55645267338 in words is "fifty-five billion, six hundred forty-five million, two hundred sixty-seven thousand, three hundred thirty-eight".