163747535117 has 2 divisors, whose sum is σ = 163747535118. Its totient is φ = 163747535116.

The previous prime is 163747535101. The next prime is 163747535179. The reversal of 163747535117 is 711535747361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152389517641 + 11358017476 = 390371^2 + 106574^2 .

It is a cyclic number.

It is not a de Polignac number, because 163747535117 - 2⁴ = 163747535101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163747535617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81873767558 + 81873767559.

It is an arithmetic number, because the mean of its divisors is an integer number (81873767559).

Almost surely, 2^163747535117 is an apocalyptic number.

It is an amenable number.

163747535117 is a deficient number, since it is larger than the sum of its proper divisors (1).

163747535117 is an equidigital number, since it uses as much as digits as its factorization.

163747535117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1852200, while the sum is 50.

The spelling of 163747535117 in words is "one hundred sixty-three billion, seven hundred forty-seven million, five hundred thirty-five thousand, one hundred seventeen".