3118061665157 has 2 divisors, whose sum is σ = 3118061665158. Its totient is φ = 3118061665156.

The previous prime is 3118061665133. The next prime is 3118061665163. The reversal of 3118061665157 is 7515661608113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3077642171041 + 40419494116 = 1754321^2 + 201046^2 .

It is an emirp because it is prime and its reverse (7515661608113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3118061665157 - 2¹⁴ = 3118061648773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3118061665457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1559030832578 + 1559030832579.

It is an arithmetic number, because the mean of its divisors is an integer number (1559030832579).

Almost surely, 2^{3118061665157} is an apocalyptic number.

It is an amenable number.

3118061665157 is a deficient number, since it is larger than the sum of its proper divisors (1).

3118061665157 is an equidigital number, since it uses as much as digits as its factorization.

3118061665157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 50.

The spelling of 3118061665157 in words is "three trillion, one hundred eighteen billion, sixty-one million, six hundred sixty-five thousand, one hundred fifty-seven".