40303161517 has 2 divisors, whose sum is σ = 40303161518. Its totient is φ = 40303161516.

The previous prime is 40303161443. The next prime is 40303161523. The reversal of 40303161517 is 71516130304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40248785641 + 54375876 = 200621^2 + 7374^2 .

It is a cyclic number.

It is not a de Polignac number, because 40303161517 - 2¹⁹ = 40302637229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40303168517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20151580758 + 20151580759.

It is an arithmetic number, because the mean of its divisors is an integer number (20151580759).

Almost surely, 2^40303161517 is an apocalyptic number.

It is an amenable number.

40303161517 is a deficient number, since it is larger than the sum of its proper divisors (1).

40303161517 is an equidigital number, since it uses as much as digits as its factorization.

40303161517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The spelling of 40303161517 in words is "forty billion, three hundred three million, one hundred sixty-one thousand, five hundred seventeen".