40466145061 has 2 divisors, whose sum is σ = 40466145062. Its totient is φ = 40466145060.

The previous prime is 40466145037. The next prime is 40466145091. The reversal of 40466145061 is 16054166404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37506132225 + 2960012836 = 193665^2 + 54406^2 .

It is a cyclic number.

It is not a de Polignac number, because 40466145061 - 2⁷ = 40466144933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40466145061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40466145091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20233072530 + 20233072531.

It is an arithmetic number, because the mean of its divisors is an integer number (20233072531).

Almost surely, 2^40466145061 is an apocalyptic number.

It is an amenable number.

40466145061 is a deficient number, since it is larger than the sum of its proper divisors (1).

40466145061 is an equidigital number, since it uses as much as digits as its factorization.

40466145061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 40466145061 in words is "forty billion, four hundred sixty-six million, one hundred forty-five thousand, sixty-one".