2660431361 has 8 divisors (see below), whose sum is σ = 3052325760. Its totient is φ = 2271495168.

The previous prime is 2660431351. The next prime is 2660431391. The reversal of 2660431361 is 1631340662.

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-2660431361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2660431351) 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, 737621 + ... + 741218.

It is an arithmetic number, because the mean of its divisors is an integer number (381540720).

Almost surely, 2^2660431361 is an apocalyptic number.

It is an amenable number.

2660431361 is a deficient number, since it is larger than the sum of its proper divisors (391894399).

2660431361 is a wasteful number, since it uses less digits than its factorization.

2660431361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479103.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 2660431361 is about 51579.3695289115. The cubic root of 2660431361 is about 1385.6408753214.

The spelling of 2660431361 in words is "two billion, six hundred sixty million, four hundred thirty-one thousand, three hundred sixty-one".