2112311066655 has 16 divisors (see below), whose sum is σ = 3379884895584. Its totient is φ = 1126503505920.

The previous prime is 2112311066563. The next prime is 2112311066683. The reversal of 2112311066655 is 5566601132112.

It is not a de Polignac number, because 2112311066655 - 2²⁵ = 2112277512223 is a prime.

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, 3619266 + ... + 4162175.

It is an arithmetic number, because the mean of its divisors is an integer number (211242805974).

Almost surely, 2^{2112311066655} is an apocalyptic number.

2112311066655 is a deficient number, since it is larger than the sum of its proper divisors (1267573828929).

2112311066655 is a wasteful number, since it uses less digits than its factorization.

2112311066655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7799546.

The product of its (nonzero) digits is 64800, while the sum is 39.

Adding to 2112311066655 its reverse (5566601132112), we get a palindrome (7678912198767).

The spelling of 2112311066655 in words is "two trillion, one hundred twelve billion, three hundred eleven million, sixty-six thousand, six hundred fifty-five".