259521665941 has 8 divisors (see below), whose sum is σ = 262843614080. Its totient is φ = 256200639552.

The previous prime is 259521665891. The next prime is 259521665957. The reversal of 259521665941 is 149566125952.

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-259521665941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259521665981) 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, 345421 + ... + 798973.

It is an arithmetic number, because the mean of its divisors is an integer number (32855451760).

Almost surely, 2^259521665941 is an apocalyptic number.

It is an amenable number.

259521665941 is a deficient number, since it is larger than the sum of its proper divisors (3321948139).

259521665941 is an equidigital number, since it uses as much as digits as its factorization.

259521665941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460875.

The product of its digits is 5832000, while the sum is 55.

The spelling of 259521665941 in words is "two hundred fifty-nine billion, five hundred twenty-one million, six hundred sixty-five thousand, nine hundred forty-one".