2105665552 has 20 divisors (see below), whose sum is σ = 4080937216. Its totient is φ = 1052520480.

The previous prime is 2105665537. The next prime is 2105665561. The reversal of 2105665552 is 2555665012.

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 3 ways as a sum of consecutive naturals, for example, 41977 + ... + 77287.

Almost surely, 2^2105665552 is an apocalyptic number.

It is an amenable number.

2105665552 is a deficient number, since it is larger than the sum of its proper divisors (1975271664).

2105665552 is a wasteful number, since it uses less digits than its factorization.

2105665552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39046 (or 39040 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 2105665552 is about 45887.5315526996. The cubic root of 2105665552 is about 1281.7297480136.

The spelling of 2105665552 in words is "two billion, one hundred five million, six hundred sixty-five thousand, five hundred fifty-two".