2660061243 has 8 divisors (see below), whose sum is σ = 4053426688. Its totient is φ = 1520034984.

The previous prime is 2660061233. The next prime is 2660061259. The reversal of 2660061243 is 3421600662.

2660061243 is digitally balanced in base 2 and base 4, because in such bases 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 not a de Polignac number, because 2660061243 - 2⁸ = 2660060987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2660061243.

It is not an unprimeable number, because it can be changed into a prime (2660061203) 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, 63334771 + ... + 63334812.

It is an arithmetic number, because the mean of its divisors is an integer number (506678336).

Almost surely, 2^2660061243 is an apocalyptic number.

2660061243 is a deficient number, since it is larger than the sum of its proper divisors (1393365445).

2660061243 is a wasteful number, since it uses less digits than its factorization.

2660061243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126669593.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 2660061243 is about 51575.7815549120. The cubic root of 2660061243 is about 1385.5766157654.

The spelling of 2660061243 in words is "two billion, six hundred sixty million, sixty-one thousand, two hundred forty-three".