40196656117 has 2 divisors, whose sum is σ = 40196656118. Its totient is φ = 40196656116.

The previous prime is 40196656103. The next prime is 40196656121. The reversal of 40196656117 is 71165669104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40154548996 + 42107121 = 200386^2 + 6489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40196656117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40196656147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20098328058 + 20098328059.

It is an arithmetic number, because the mean of its divisors is an integer number (20098328059).

Almost surely, 2^40196656117 is an apocalyptic number.

It is an amenable number.

40196656117 is a deficient number, since it is larger than the sum of its proper divisors (1).

40196656117 is an equidigital number, since it uses as much as digits as its factorization.

40196656117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 40196656117 in words is "forty billion, one hundred ninety-six million, six hundred fifty-six thousand, one hundred seventeen".