20466543717041 has 4 divisors (see below), whose sum is σ = 20466622425972. Its totient is φ = 20466465008112.

The previous prime is 20466543716887. The next prime is 20466543717079. The reversal of 20466543717041 is 14071734566402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7994733630016 + 12471810087025 = 2827496^2 + 3531545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20466543717041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20466543717091) 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, 38963126 + ... + 39484911.

It is an arithmetic number, because the mean of its divisors is an integer number (5116655606493).

Almost surely, 2^{20466543717041} is an apocalyptic number.

It is an amenable number.

20466543717041 is a deficient number, since it is larger than the sum of its proper divisors (78708931).

20466543717041 is an equidigital number, since it uses as much as digits as its factorization.

20466543717041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78708930.

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 20466543717041 in words is "twenty trillion, four hundred sixty-six billion, five hundred forty-three million, seven hundred seventeen thousand, forty-one".