55656160660499 has 4 divisors (see below), whose sum is σ = 63607040754864. Its totient is φ = 47705280566136.

The previous prime is 55656160660493. The next prime is 55656160660511. The reversal of 55656160660499 is 99406606165655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55656160660499 - 2⁴⁰ = 54556649032723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55656160660493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3975440047172 + ... + 3975440047185.

It is an arithmetic number, because the mean of its divisors is an integer number (15901760188716).

Almost surely, 2^{55656160660499} is an apocalyptic number.

55656160660499 is a deficient number, since it is larger than the sum of its proper divisors (7950880094365).

55656160660499 is an equidigital number, since it uses as much as digits as its factorization.

55656160660499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7950880094364.

The product of its (nonzero) digits is 314928000, while the sum is 68.

The spelling of 55656160660499 in words is "fifty-five trillion, six hundred fifty-six billion, one hundred sixty million, six hundred sixty thousand, four hundred ninety-nine".