2055111655665 has 32 divisors (see below), whose sum is σ = 3297343484160. Its totient is φ = 1093007149056.

The previous prime is 2055111655661. The next prime is 2055111655703. The reversal of 2055111655665 is 5665561115502.

It is not a de Polignac number, because 2055111655665 - 2² = 2055111655661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2055111655661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13045609 + ... + 13202201.

It is an arithmetic number, because the mean of its divisors is an integer number (103041983880).

Almost surely, 2^{2055111655665} is an apocalyptic number.

It is an amenable number.

2055111655665 is a deficient number, since it is larger than the sum of its proper divisors (1242231828495).

2055111655665 is a wasteful number, since it uses less digits than its factorization.

2055111655665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159033.

The product of its (nonzero) digits is 1350000, while the sum is 48.

The spelling of 2055111655665 in words is "two trillion, fifty-five billion, one hundred eleven million, six hundred fifty-five thousand, six hundred sixty-five".