2660271705 has 48 divisors (see below), whose sum is σ = 5675255040. Its totient is φ = 1122574464.

The previous prime is 2660271661. The next prime is 2660271751. The reversal of 2660271705 is 5071720662.

It is not a de Polignac number, because 2660271705 - 2⁶ = 2660271641 is a prime.

It is a super-4 number, since 4×2660271705⁴ (a number of 39 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2660271705.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 320725 + ... + 328914.

It is an arithmetic number, because the mean of its divisors is an integer number (118234480).

Almost surely, 2^2660271705 is an apocalyptic number.

It is an amenable number.

2660271705 is an abundant number, since it is smaller than the sum of its proper divisors (3014983335).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2660271705 is a wasteful number, since it uses less digits than its factorization.

2660271705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649670 (or 649667 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 2660271705 is about 51577.8218326443. The cubic root of 2660271705 is about 1385.6131567206.

The spelling of 2660271705 in words is "two billion, six hundred sixty million, two hundred seventy-one thousand, seven hundred five".