2102655065 has 24 divisors (see below), whose sum is σ = 2952353088. Its totient is φ = 1408246560.

The previous prime is 2102655059. The next prime is 2102655089. The reversal of 2102655065 is 5605562012.

It is not a de Polignac number, because 2102655065 - 2¹² = 2102650969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48470 + ... + 80960.

It is an arithmetic number, because the mean of its divisors is an integer number (123014712).

Almost surely, 2^2102655065 is an apocalyptic number.

It is an amenable number.

2102655065 is a deficient number, since it is larger than the sum of its proper divisors (849698023).

2102655065 is an equidigital number, since it uses as much as digits as its factorization.

2102655065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32589 (or 32546 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 2102655065 is about 45854.7169329394. The cubic root of 2102655065 is about 1281.1186235629.

The spelling of 2102655065 in words is "two billion, one hundred two million, six hundred fifty-five thousand, sixty-five".