2660064641 has 8 divisors (see below), whose sum is σ = 2879083200. Its totient is φ = 2443102992.

The previous prime is 2660064623. The next prime is 2660064653. The reversal of 2660064641 is 1464600662.

2660064641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2660064641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2660064601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511535 + ... + 516708.

It is an arithmetic number, because the mean of its divisors is an integer number (359885400).

Almost surely, 2^2660064641 is an apocalyptic number.

It is an amenable number.

2660064641 is a deficient number, since it is larger than the sum of its proper divisors (219018559).

2660064641 is a wasteful number, since it uses less digits than its factorization.

2660064641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028455.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 2660064641 is about 51575.8144967193. The cubic root of 2660064641 is about 1385.5772057503.

The spelling of 2660064641 in words is "two billion, six hundred sixty million, sixty-four thousand, six hundred forty-one".