260305241021551 has 8 divisors (see below), whose sum is σ = 283969491934464. Its totient is φ = 236641013124120.

The previous prime is 260305241021521. The next prime is 260305241021593. The reversal of 260305241021551 is 155120142503062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 260305241021551 - 2⁵ = 260305241021519 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 260305241021551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260305241021521) 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, 25076980 + ... + 33903766.

It is an arithmetic number, because the mean of its divisors is an integer number (35496186491808).

Almost surely, 2^{260305241021551} is an apocalyptic number.

260305241021551 is a deficient number, since it is larger than the sum of its proper divisors (23664250912913).

260305241021551 is a wasteful number, since it uses less digits than its factorization.

260305241021551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11507741.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 260305241021551 in words is "two hundred sixty trillion, three hundred five billion, two hundred forty-one million, twenty-one thousand, five hundred fifty-one".