2660505541 has 4 divisors (see below), whose sum is σ = 2673114784. Its totient is φ = 2647896300.

The previous prime is 2660505527. The next prime is 2660505587. The reversal of 2660505541 is 1455050662.

2660505541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2660505541 - 2⁷ = 2660505413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2660505497 and 2660505506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660535541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6304305 + ... + 6304726.

It is an arithmetic number, because the mean of its divisors is an integer number (668278696).

Almost surely, 2^2660505541 is an apocalyptic number.

It is an amenable number.

2660505541 is a deficient number, since it is larger than the sum of its proper divisors (12609243).

2660505541 is a wasteful number, since it uses less digits than its factorization.

2660505541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12609242.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 2660505541 is about 51580.0886098502. The cubic root of 2660505541 is about 1385.6537536697.

The spelling of 2660505541 in words is "two billion, six hundred sixty million, five hundred five thousand, five hundred forty-one".