2116556055 has 16 divisors (see below), whose sum is σ = 3762766560. Its totient is φ = 1128829824.

The previous prime is 2116556041. The next prime is 2116556059. The reversal of 2116556055 is 5506556112.

It is not a de Polignac number, because 2116556055 - 2⁹ = 2116555543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116556059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7838962 + ... + 7839231.

It is an arithmetic number, because the mean of its divisors is an integer number (235172910).

Almost surely, 2^2116556055 is an apocalyptic number.

2116556055 is a deficient number, since it is larger than the sum of its proper divisors (1646210505).

2116556055 is a wasteful number, since it uses less digits than its factorization.

2116556055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15678207 (or 15678201 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The square root of 2116556055 is about 46006.0436790646. The cubic root of 2116556055 is about 1283.9356516359.

The spelling of 2116556055 in words is "two billion, one hundred sixteen million, five hundred fifty-six thousand, fifty-five".