6543423160061 has 4 divisors (see below), whose sum is σ = 6682644929472. Its totient is φ = 6404201390652.

The previous prime is 6543423160009. The next prime is 6543423160063. The reversal of 6543423160061 is 1600613243456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6543423160061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6543423160063) 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, 69610884635 + ... + 69610884728.

It is an arithmetic number, because the mean of its divisors is an integer number (1670661232368).

Almost surely, 2^{6543423160061} is an apocalyptic number.

It is an amenable number.

6543423160061 is a deficient number, since it is larger than the sum of its proper divisors (139221769411).

6543423160061 is a wasteful number, since it uses less digits than its factorization.

6543423160061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139221769410.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 6543423160061 in words is "six trillion, five hundred forty-three billion, four hundred twenty-three million, one hundred sixty thousand, sixty-one".