55665827943 has 16 divisors (see below), whose sum is σ = 80977130112. Its totient is φ = 33733260000.

The previous prime is 55665827929. The next prime is 55665827983. The reversal of 55665827943 is 34972856655.

It is not a de Polignac number, because 55665827943 - 2¹⁴ = 55665811559 is a prime.

It is a super-2 number, since 2×55665827943² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55665827983) 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 15 ways as a sum of consecutive naturals, for example, 241548 + ... + 411918.

It is an arithmetic number, because the mean of its divisors is an integer number (5061070632).

Almost surely, 2^55665827943 is an apocalyptic number.

55665827943 is a deficient number, since it is larger than the sum of its proper divisors (25311302169).

55665827943 is a wasteful number, since it uses less digits than its factorization.

55665827943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180286.

The product of its digits is 54432000, while the sum is 60.

The spelling of 55665827943 in words is "fifty-five billion, six hundred sixty-five million, eight hundred twenty-seven thousand, nine hundred forty-three".