2660500664 has 8 divisors (see below), whose sum is σ = 4988438760. Its totient is φ = 1330250328.

The previous prime is 2660500649. The next prime is 2660500679. The reversal of 2660500664 is 4660050662.

It is an interprime number because it is at equal distance from previous prime (2660500649) and next prime (2660500679).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166281284 + ... + 166281299.

It is an arithmetic number, because the mean of its divisors is an integer number (623554845).

Almost surely, 2^2660500664 is an apocalyptic number.

It is an amenable number.

2660500664 is a deficient number, since it is larger than the sum of its proper divisors (2327938096).

2660500664 is a wasteful number, since it uses less digits than its factorization.

2660500664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332562589 (or 332562585 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 2660500664 is about 51580.0413338338. The cubic root of 2660500664 is about 1385.6529069838.

The spelling of 2660500664 in words is "two billion, six hundred sixty million, five hundred thousand, six hundred sixty-four".