40665044341 has 2 divisors, whose sum is σ = 40665044342. Its totient is φ = 40665044340.

The previous prime is 40665044333. The next prime is 40665044347. The reversal of 40665044341 is 14344056604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38997955441 + 1667088900 = 197479^2 + 40830^2 .

It is a cyclic number.

It is not a de Polignac number, because 40665044341 - 2³ = 40665044333 is a prime.

It is a super-2 number, since 2×40665044341² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40665044341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40665044347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20332522170 + 20332522171.

It is an arithmetic number, because the mean of its divisors is an integer number (20332522171).

Almost surely, 2^40665044341 is an apocalyptic number.

It is an amenable number.

40665044341 is a deficient number, since it is larger than the sum of its proper divisors (1).

40665044341 is an equidigital number, since it uses as much as digits as its factorization.

40665044341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 40665044341 in words is "forty billion, six hundred sixty-five million, forty-four thousand, three hundred forty-one".