2660654866 has 8 divisors (see below), whose sum is σ = 4075896960. Its totient is φ = 1302022548.

The previous prime is 2660654863. The next prime is 2660654869. The reversal of 2660654866 is 6684560662.

It is an interprime number because it is at equal distance from previous prime (2660654863) and next prime (2660654869).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2660654866³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2660654863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14152326 + ... + 14152513.

It is an arithmetic number, because the mean of its divisors is an integer number (509487120).

Almost surely, 2^2660654866 is an apocalyptic number.

2660654866 is a deficient number, since it is larger than the sum of its proper divisors (1415242094).

2660654866 is a wasteful number, since it uses less digits than its factorization.

2660654866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28304888.

The product of its (nonzero) digits is 2488320, while the sum is 49.

The square root of 2660654866 is about 51581.5360957775. The cubic root of 2660654866 is about 1385.6796771734.

The spelling of 2660654866 in words is "two billion, six hundred sixty million, six hundred fifty-four thousand, eight hundred sixty-six".