117157061617 has 2 divisors, whose sum is σ = 117157061618. Its totient is φ = 117157061616.

The previous prime is 117157061611. The next prime is 117157061657. The reversal of 117157061617 is 716160751711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96619018896 + 20538042721 = 310836^2 + 143311^2 .

It is a cyclic number.

It is not a de Polignac number, because 117157061617 - 2²³ = 117148673009 is a prime.

It is not a weakly prime, because it can be changed into another prime (117157061611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58578530808 + 58578530809.

It is an arithmetic number, because the mean of its divisors is an integer number (58578530809).

Almost surely, 2^117157061617 is an apocalyptic number.

It is an amenable number.

117157061617 is a deficient number, since it is larger than the sum of its proper divisors (1).

117157061617 is an equidigital number, since it uses as much as digits as its factorization.

117157061617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61740, while the sum is 43.

The spelling of 117157061617 in words is "one hundred seventeen billion, one hundred fifty-seven million, sixty-one thousand, six hundred seventeen".