6531456541355 has 16 divisors (see below), whose sum is σ = 7968058833024. Its totient is φ = 5138330455680.

The previous prime is 6531456541339. The next prime is 6531456541369. The reversal of 6531456541355 is 5531456541356.

It is not a de Polignac number, because 6531456541355 - 2⁴ = 6531456541339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6531456541297 and 6531456541306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1114739 + ... + 3782268.

It is an arithmetic number, because the mean of its divisors is an integer number (498003677064).

Almost surely, 2^{6531456541355} is an apocalyptic number.

6531456541355 is a deficient number, since it is larger than the sum of its proper divisors (1436602291669).

6531456541355 is a wasteful number, since it uses less digits than its factorization.

6531456541355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901446.

The product of its digits is 16200000, while the sum is 53.

Subtracting from 6531456541355 its reverse (5531456541356), we obtain a palindrome (999999999999).

The spelling of 6531456541355 in words is "six trillion, five hundred thirty-one billion, four hundred fifty-six million, five hundred forty-one thousand, three hundred fifty-five".