55771666255 has 8 divisors (see below), whose sum is σ = 66932502624. Its totient is φ = 44612997600.

The previous prime is 55771666253. The next prime is 55771666273. The reversal of 55771666255 is 55266617755.

55771666255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55771666255 - 2¹ = 55771666253 is a prime.

It is a super-2 number, since 2×55771666255² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55771666196 and 55771666205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55771666253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484776 + ... + 588685.

It is an arithmetic number, because the mean of its divisors is an integer number (8366562828).

Almost surely, 2^55771666255 is an apocalyptic number.

55771666255 is a deficient number, since it is larger than the sum of its proper divisors (11160836369).

55771666255 is a wasteful number, since it uses less digits than its factorization.

55771666255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083857.

The product of its digits is 13230000, while the sum is 55.

The spelling of 55771666255 in words is "fifty-five billion, seven hundred seventy-one million, six hundred sixty-six thousand, two hundred fifty-five".