6511105155 has 64 divisors (see below), whose sum is σ = 11347176960. Its totient is φ = 3176838144.

The previous prime is 6511105141. The next prime is 6511105171. The reversal of 6511105155 is 5515011156.

6511105155 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6511105155 - 2¹¹ = 6511103107 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1442412 + ... + 1446918.

It is an arithmetic number, because the mean of its divisors is an integer number (177299640).

Almost surely, 2^6511105155 is an apocalyptic number.

6511105155 is a deficient number, since it is larger than the sum of its proper divisors (4836071805).

6511105155 is a wasteful number, since it uses less digits than its factorization.

6511105155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4708.

The product of its (nonzero) digits is 3750, while the sum is 30.

The square root of 6511105155 is about 80691.4193393573. The cubic root of 6511105155 is about 1867.3177971696.

The spelling of 6511105155 in words is "six billion, five hundred eleven million, one hundred five thousand, one hundred fifty-five".