2660506243 has 8 divisors (see below), whose sum is σ = 2747841408. Its totient is φ = 2574546624.

The previous prime is 2660506241. The next prime is 2660506259. The reversal of 2660506243 is 3426050662.

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

It is a cyclic number.

It is not a de Polignac number, because 2660506243 - 2¹ = 2660506241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2660506199 and 2660506208.

It is not an unprimeable number, because it can be changed into a prime (2660506241) 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, 339955 + ... + 347692.

It is an arithmetic number, because the mean of its divisors is an integer number (343480176).

Almost surely, 2^2660506243 is an apocalyptic number.

2660506243 is a deficient number, since it is larger than the sum of its proper divisors (87335165).

2660506243 is an equidigital number, since it uses as much as digits as its factorization.

2660506243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687773.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 2660506243 is about 51580.0954148012. The cubic root of 2660506243 is about 1385.6538755424.

The spelling of 2660506243 in words is "two billion, six hundred sixty million, five hundred six thousand, two hundred forty-three".