2055635665 has 16 divisors (see below), whose sum is σ = 2648661120. Its totient is φ = 1525968640.

The previous prime is 2055635627. The next prime is 2055635713. The reversal of 2055635665 is 5665365502.

It is a de Polignac number, because none of the positive numbers 2^k-2055635665 is a prime.

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, 164275 + ... + 176344.

It is an arithmetic number, because the mean of its divisors is an integer number (165541320).

Almost surely, 2^2055635665 is an apocalyptic number.

It is an amenable number.

2055635665 is a deficient number, since it is larger than the sum of its proper divisors (593025455).

2055635665 is a wasteful number, since it uses less digits than its factorization.

2055635665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340712.

The product of its (nonzero) digits is 810000, while the sum is 43.

The square root of 2055635665 is about 45339.1184850345. The cubic root of 2055635665 is about 1271.4971215437.

The spelling of 2055635665 in words is "two billion, fifty-five million, six hundred thirty-five thousand, six hundred sixty-five".