40816014328021 has 2 divisors, whose sum is σ = 40816014328022. Its totient is φ = 40816014328020.

The previous prime is 40816014327889. The next prime is 40816014328073. The reversal of 40816014328021 is 12082341061804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30384503181796 + 10431511146225 = 5512214^2 + 3229785^2 .

It is a cyclic number.

It is not a de Polignac number, because 40816014328021 - 2¹⁵ = 40816014295253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40816014329021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20408007164010 + 20408007164011.

It is an arithmetic number, because the mean of its divisors is an integer number (20408007164011).

Almost surely, 2^{40816014328021} is an apocalyptic number.

It is an amenable number.

40816014328021 is a deficient number, since it is larger than the sum of its proper divisors (1).

40816014328021 is an equidigital number, since it uses as much as digits as its factorization.

40816014328021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 40.

Adding to 40816014328021 its reverse (12082341061804), we get a palindrome (52898355389825).

The spelling of 40816014328021 in words is "forty trillion, eight hundred sixteen billion, fourteen million, three hundred twenty-eight thousand, twenty-one".