8540065611157 has 2 divisors, whose sum is σ = 8540065611158. Its totient is φ = 8540065611156.

The previous prime is 8540065611041. The next prime is 8540065611179. The reversal of 8540065611157 is 7511165600458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4613362719876 + 3926702891281 = 2147874^2 + 1981591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8540065611157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8540065611157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8540068611157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4270032805578 + 4270032805579.

It is an arithmetic number, because the mean of its divisors is an integer number (4270032805579).

Almost surely, 2^{8540065611157} is an apocalyptic number.

It is an amenable number.

8540065611157 is a deficient number, since it is larger than the sum of its proper divisors (1).

8540065611157 is an equidigital number, since it uses as much as digits as its factorization.

8540065611157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008000, while the sum is 49.

The spelling of 8540065611157 in words is "eight trillion, five hundred forty billion, sixty-five million, six hundred eleven thousand, one hundred fifty-seven".