6543605315051 has 16 divisors (see below), whose sum is σ = 7720119121920. Its totient is φ = 5427541995840.

The previous prime is 6543605315017. The next prime is 6543605315063. The reversal of 6543605315051 is 1505135063456.

It is a happy number.

6543605315051 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 6543605315051 - 2³⁸ = 6268727408107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6543605314993 and 6543605315011.

It is not an unprimeable number, because it can be changed into a prime (6543605365051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2646815 + ... + 4482503.

It is an arithmetic number, because the mean of its divisors is an integer number (482507445120).

Almost surely, 2^{6543605315051} is an apocalyptic number.

6543605315051 is a deficient number, since it is larger than the sum of its proper divisors (1176513806869).

6543605315051 is a wasteful number, since it uses less digits than its factorization.

6543605315051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852154.

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 6543605315051 in words is "six trillion, five hundred forty-three billion, six hundred five million, three hundred fifteen thousand, fifty-one".