55660660513 has 8 divisors (see below), whose sum is σ = 55758935232. Its totient is φ = 55562446896.

The previous prime is 55660660511. The next prime is 55660660519. The reversal of 55660660513 is 31506606655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55660660513 - 2¹ = 55660660511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55660660513.

It is not an unprimeable number, because it can be changed into a prime (55660660511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2049006 + ... + 2075992.

It is an arithmetic number, because the mean of its divisors is an integer number (6969866904).

Almost surely, 2^55660660513 is an apocalyptic number.

It is an amenable number.

55660660513 is a deficient number, since it is larger than the sum of its proper divisors (98274719).

55660660513 is a wasteful number, since it uses less digits than its factorization.

55660660513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30551.

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 55660660513 in words is "fifty-five billion, six hundred sixty million, six hundred sixty thousand, five hundred thirteen".