40216144517 has 2 divisors, whose sum is σ = 40216144518. Its totient is φ = 40216144516.

The previous prime is 40216144489. The next prime is 40216144523. The reversal of 40216144517 is 71544161204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23226064801 + 16990079716 = 152401^2 + 130346^2 .

It is a cyclic number.

It is not a de Polignac number, because 40216144517 - 2¹⁴ = 40216128133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40216144547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20108072258 + 20108072259.

It is an arithmetic number, because the mean of its divisors is an integer number (20108072259).

Almost surely, 2^40216144517 is an apocalyptic number.

It is an amenable number.

40216144517 is a deficient number, since it is larger than the sum of its proper divisors (1).

40216144517 is an equidigital number, since it uses as much as digits as its factorization.

40216144517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 40216144517 in words is "forty billion, two hundred sixteen million, one hundred forty-four thousand, five hundred seventeen".