55646605575 has 36 divisors (see below), whose sum is σ = 108730099608. Its totient is φ = 26980171200.

The previous prime is 55646605571. The next prime is 55646605577. The reversal of 55646605575 is 57550664655.

55646605575 is a `hidden beast` number, since 5 + 5 + 6 + 4 + 6 + 60 + 5 + 575 = 666.

It is not a de Polignac number, because 55646605575 - 2² = 55646605571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55646605571) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 11239264 + ... + 11244213.

Almost surely, 2^55646605575 is an apocalyptic number.

55646605575 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55646605575 is a deficient number, since it is larger than the sum of its proper divisors (53083494033).

55646605575 is a wasteful number, since it uses less digits than its factorization.

55646605575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22483504 (or 22483496 counting only the distinct ones).

The product of its (nonzero) digits is 18900000, while the sum is 54.

The spelling of 55646605575 in words is "fifty-five billion, six hundred forty-six million, six hundred five thousand, five hundred seventy-five".