2661707265 has 32 divisors (see below), whose sum is σ = 4894046976. Its totient is φ = 1210049280.

The previous prime is 2661707233. The next prime is 2661707273. The reversal of 2661707265 is 5627071662.

It is not a de Polignac number, because 2661707265 - 2⁵ = 2661707233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51022 + ... + 89031.

It is an arithmetic number, because the mean of its divisors is an integer number (152938968).

Almost surely, 2^2661707265 is an apocalyptic number.

It is an amenable number.

2661707265 is a deficient number, since it is larger than the sum of its proper divisors (2232339711).

2661707265 is a wasteful number, since it uses less digits than its factorization.

2661707265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140249.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 2661707265 is about 51591.7364022573. The cubic root of 2661707265 is about 1385.8623509575.

The spelling of 2661707265 in words is "two billion, six hundred sixty-one million, seven hundred seven thousand, two hundred sixty-five".