1521341320255 has 32 divisors (see below), whose sum is σ = 1843282925568. Its totient is φ = 1205352825600.

The previous prime is 1521341320253. The next prime is 1521341320319. The reversal of 1521341320255 is 5520231431251.

It is not a de Polignac number, because 1521341320255 - 2¹ = 1521341320253 is a prime.

It is a super-3 number, since 3×1521341320255³ (a number of 38 digits) contains 333 as substring.

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 1521341320255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521341320253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 294203820 + ... + 294208990.

It is an arithmetic number, because the mean of its divisors is an integer number (57602591424).

Almost surely, 2^{1521341320255} is an apocalyptic number.

1521341320255 is a deficient number, since it is larger than the sum of its proper divisors (321941605313).

1521341320255 is a wasteful number, since it uses less digits than its factorization.

1521341320255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6567.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 1521341320255 in words is "one trillion, five hundred twenty-one billion, three hundred forty-one million, three hundred twenty thousand, two hundred fifty-five".