654763652161 has 2 divisors, whose sum is σ = 654763652162. Its totient is φ = 654763652160.

The previous prime is 654763652129. The next prime is 654763652203. The reversal of 654763652161 is 161256367456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 455463014400 + 199300637761 = 674880^2 + 446431^2 .

It is a cyclic number.

It is not a de Polignac number, because 654763652161 - 2⁵ = 654763652129 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 654763652099 and 654763652108.

It is not a weakly prime, because it can be changed into another prime (654763652261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327381826080 + 327381826081.

It is an arithmetic number, because the mean of its divisors is an integer number (327381826081).

Almost surely, 2^654763652161 is an apocalyptic number.

It is an amenable number.

654763652161 is a deficient number, since it is larger than the sum of its proper divisors (1).

654763652161 is an equidigital number, since it uses as much as digits as its factorization.

654763652161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 52.

The spelling of 654763652161 in words is "six hundred fifty-four billion, seven hundred sixty-three million, six hundred fifty-two thousand, one hundred sixty-one".