2660606905 has 16 divisors (see below), whose sum is σ = 3516799104. Its totient is φ = 1916196480.

The previous prime is 2660606887. The next prime is 2660606911. The reversal of 2660606905 is 5096060662.

It is not a de Polignac number, because 2660606905 - 2⁵ = 2660606873 is a prime.

It is a Duffinian number.

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, 229164 + ... + 240493.

It is an arithmetic number, because the mean of its divisors is an integer number (219799944).

Almost surely, 2^2660606905 is an apocalyptic number.

It is an amenable number.

2660606905 is a deficient number, since it is larger than the sum of its proper divisors (856192199).

2660606905 is a wasteful number, since it uses less digits than its factorization.

2660606905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469776.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 2660606905 is about 51581.0711889546. The cubic root of 2660606905 is about 1385.6713510299.

The spelling of 2660606905 in words is "two billion, six hundred sixty million, six hundred six thousand, nine hundred five".