8777057161 has 2 divisors, whose sum is σ = 8777057162. Its totient is φ = 8777057160.

The previous prime is 8777057137. The next prime is 8777057171. The reversal of 8777057161 is 1617507778.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6507487561 + 2269569600 = 80669^2 + 47640^2 .

It is a cyclic number.

It is not a de Polignac number, because 8777057161 - 2¹⁷ = 8776926089 is a prime.

It is a super-2 number, since 2×8777057161² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8777057171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4388528580 + 4388528581.

It is an arithmetic number, because the mean of its divisors is an integer number (4388528581).

Almost surely, 2^8777057161 is an apocalyptic number.

It is an amenable number.

8777057161 is a deficient number, since it is larger than the sum of its proper divisors (1).

8777057161 is an equidigital number, since it uses as much as digits as its factorization.

8777057161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576240, while the sum is 49.

The square root of 8777057161 is about 93685.9496456112. The cubic root of 8777057161 is about 2062.7644696724.

The spelling of 8777057161 in words is "eight billion, seven hundred seventy-seven million, fifty-seven thousand, one hundred sixty-one".