40010060081 has 2 divisors, whose sum is σ = 40010060082. Its totient is φ = 40010060080.

The previous prime is 40010060063. The next prime is 40010060117. The reversal of 40010060081 is 18006001004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36557440000 + 3452620081 = 191200^2 + 58759^2 .

It is a cyclic number.

It is not a de Polignac number, because 40010060081 - 2³⁰ = 38936318257 is a prime.

It is a super-3 number, since 3×40010060081³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40010060281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20005030040 + 20005030041.

It is an arithmetic number, because the mean of its divisors is an integer number (20005030041).

Almost surely, 2^40010060081 is an apocalyptic number.

It is an amenable number.

40010060081 is a deficient number, since it is larger than the sum of its proper divisors (1).

40010060081 is an equidigital number, since it uses as much as digits as its factorization.

40010060081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 40010060081 its reverse (18006001004), we get a palindrome (58016061085).

The spelling of 40010060081 in words is "forty billion, ten million, sixty thousand, eighty-one".