2055665673 has 6 divisors (see below), whose sum is σ = 2969294874. Its totient is φ = 1370443776.

The previous prime is 2055665617. The next prime is 2055665681. The reversal of 2055665673 is 3765665502.

2055665673 is a `hidden beast` number, since 20 + 5 + 5 + 66 + 567 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1713711609 + 341954064 = 41397^2 + 18492^2 .

It is not a de Polignac number, because 2055665673 - 2³⁰ = 981923849 is a prime.

It is a super-2 number, since 2×2055665673² = 8451522718301085858, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2055665173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114203640 + ... + 114203657.

It is an arithmetic number, because the mean of its divisors is an integer number (494882479).

Almost surely, 2^2055665673 is an apocalyptic number.

It is an amenable number.

2055665673 is a deficient number, since it is larger than the sum of its proper divisors (913629201).

2055665673 is a wasteful number, since it uses less digits than its factorization.

2055665673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228407303 (or 228407300 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 45.

The square root of 2055665673 is about 45339.4494121841. The cubic root of 2055665673 is about 1271.5033085837.

The spelling of 2055665673 in words is "two billion, fifty-five million, six hundred sixty-five thousand, six hundred seventy-three".