654465654961 has 2 divisors, whose sum is σ = 654465654962. Its totient is φ = 654465654960.

The previous prime is 654465654881. The next prime is 654465655009. The reversal of 654465654961 is 169456564456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 607612455025 + 46853199936 = 779495^2 + 216456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654465654961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654465654961.

It is not a weakly prime, because it can be changed into another prime (654465654761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327232827480 + 327232827481.

It is an arithmetic number, because the mean of its divisors is an integer number (327232827481).

Almost surely, 2^654465654961 is an apocalyptic number.

It is an amenable number.

654465654961 is a deficient number, since it is larger than the sum of its proper divisors (1).

654465654961 is an equidigital number, since it uses as much as digits as its factorization.

654465654961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312000, while the sum is 61.

The spelling of 654465654961 in words is "six hundred fifty-four billion, four hundred sixty-five million, six hundred fifty-four thousand, nine hundred sixty-one".