6533912540161 has 4 divisors (see below), whose sum is σ = 6533919450324. Its totient is φ = 6533905630000.

The previous prime is 6533912540149. The next prime is 6533912540179. The reversal of 6533912540161 is 1610452193356.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1070852432400 + 5463060107761 = 1034820^2 + 2337319^2 .

It is a cyclic number.

It is not a de Polignac number, because 6533912540161 - 2¹⁵ = 6533912507393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6533912540261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1759330 + ... + 4020331.

It is an arithmetic number, because the mean of its divisors is an integer number (1633479862581).

Almost surely, 2^{6533912540161} is an apocalyptic number.

It is an amenable number.

6533912540161 is a deficient number, since it is larger than the sum of its proper divisors (6910163).

6533912540161 is a wasteful number, since it uses less digits than its factorization.

6533912540161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6910162.

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 6533912540161 in words is "six trillion, five hundred thirty-three billion, nine hundred twelve million, five hundred forty thousand, one hundred sixty-one".