260344142541221 has 8 divisors (see below), whose sum is σ = 268746335625984. Its totient is φ = 251942199140160.

The previous prime is 260344142541199. The next prime is 260344142541251. The reversal of 260344142541221 is 122145241443062.

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 260344142541221 - 2⁶ = 260344142541157 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 (260344142541251) 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, 60300740 + ... + 64473773.

It is an arithmetic number, because the mean of its divisors is an integer number (33593291953248).

Almost surely, 2^{260344142541221} is an apocalyptic number.

It is an amenable number.

260344142541221 is a deficient number, since it is larger than the sum of its proper divisors (8402193084763).

260344142541221 is a wasteful number, since it uses less digits than its factorization.

260344142541221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124841851.

The product of its (nonzero) digits is 368640, while the sum is 41.

Adding to 260344142541221 its reverse (122145241443062), we get a palindrome (382489383984283).

The spelling of 260344142541221 in words is "two hundred sixty trillion, three hundred forty-four billion, one hundred forty-two million, five hundred forty-one thousand, two hundred twenty-one".