8157110111361 has 12 divisors (see below), whose sum is σ = 11793724515300. Its totient is φ = 5432889346560.

The previous prime is 8157110111357. The next prime is 8157110111383. The reversal of 8157110111361 is 1631110117518.

It is a happy number.

8157110111361 is a `hidden beast` number, since 8 + 1 + 571 + 1 + 0 + 11 + 13 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2870127281025 + 5286982830336 = 1694145^2 + 2299344^2 .

It is not a de Polignac number, because 8157110111361 - 2² = 8157110111357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8157110111461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 431995120 + ... + 432014001.

It is an arithmetic number, because the mean of its divisors is an integer number (982810376275).

Almost surely, 2^{8157110111361} is an apocalyptic number.

It is an amenable number.

8157110111361 is a deficient number, since it is larger than the sum of its proper divisors (3636614403939).

8157110111361 is a wasteful number, since it uses less digits than its factorization.

8157110111361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864010176 (or 864010173 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 36.

Adding to 8157110111361 its reverse (1631110117518), we get a palindrome (9788220228879).

The spelling of 8157110111361 in words is "eight trillion, one hundred fifty-seven billion, one hundred ten million, one hundred eleven thousand, three hundred sixty-one".