55655544555655 has 16 divisors (see below), whose sum is σ = 73184885673984. Its totient is φ = 40295249534880.

The previous prime is 55655544555631. The next prime is 55655544555697.

55655544555655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55655544555655 - 2⁴¹ = 53456521300103 is a prime.

It is a super-2 number, since 2×55655544555655² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

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, 2268864399 + ... + 2268888928.

It is an arithmetic number, because the mean of its divisors is an integer number (4574055354624).

Almost surely, 2^{55655544555655} is an apocalyptic number.

55655544555655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55655544555655 is a deficient number, since it is larger than the sum of its proper divisors (17529341118329).

55655544555655 is a wasteful number, since it uses less digits than its factorization.

55655544555655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537753566.

The product of its digits is 5625000000, while the sum is 70.

The spelling of 55655544555655 in words is "fifty-five trillion, six hundred fifty-five billion, five hundred forty-four million, five hundred fifty-five thousand, six hundred fifty-five".