6655511105105 has 4 divisors (see below), whose sum is σ = 7986613326132. Its totient is φ = 5324408884080.

The previous prime is 6655511105101. The next prime is 6655511105107. The reversal of 6655511105105 is 5015011155566.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3315327206416 + 3340183898689 = 1820804^2 + 1827617^2 .

It is not a de Polignac number, because 6655511105105 - 2² = 6655511105101 is a prime.

It is a super-3 number, since 3×6655511105105³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6655511105101) 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, 665551110506 + ... + 665551110515.

It is an arithmetic number, because the mean of its divisors is an integer number (1996653331533).

Almost surely, 2^{6655511105105} is an apocalyptic number.

It is an amenable number.

6655511105105 is a deficient number, since it is larger than the sum of its proper divisors (1331102221027).

6655511105105 is a wasteful number, since it uses less digits than its factorization.

6655511105105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331102221026.

The product of its (nonzero) digits is 112500, while the sum is 41.

The spelling of 6655511105105 in words is "six trillion, six hundred fifty-five billion, five hundred eleven million, one hundred five thousand, one hundred five".