55685766758655 has 16 divisors (see below), whose sum is σ = 97196974706304. Its totient is φ = 26999159640480.

The previous prime is 55685766758593. The next prime is 55685766758683.

55685766758655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55685766758655 - 2¹⁶ = 55685766693119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168744747589 + ... + 168744747918.

It is an arithmetic number, because the mean of its divisors is an integer number (6074810919144).

Almost surely, 2^{55685766758655} is an apocalyptic number.

55685766758655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55685766758655 is a deficient number, since it is larger than the sum of its proper divisors (41511207947649).

55685766758655 is a wasteful number, since it uses less digits than its factorization.

55685766758655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337489495526.

The product of its digits is 63504000000, while the sum is 84.

The spelling of 55685766758655 in words is "fifty-five trillion, six hundred eighty-five billion, seven hundred sixty-six million, seven hundred fifty-eight thousand, six hundred fifty-five".