260012661649 has 8 divisors (see below), whose sum is σ = 280021199360. Its totient is φ = 240005204496.

The previous prime is 260012661631. The next prime is 260012661691. The reversal of 260012661649 is 946166210062.

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 260012661649 - 2⁵ = 260012661617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260012661149) 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, 269584 + ... + 769870.

It is an arithmetic number, because the mean of its divisors is an integer number (35002649920).

Almost surely, 2^260012661649 is an apocalyptic number.

It is an amenable number.

260012661649 is a deficient number, since it is larger than the sum of its proper divisors (20008537711).

260012661649 is a wasteful number, since it uses less digits than its factorization.

260012661649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540279.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 260012661649 in words is "two hundred sixty billion, twelve million, six hundred sixty-one thousand, six hundred forty-nine".