480561240661 has 2 divisors, whose sum is σ = 480561240662. Its totient is φ = 480561240660.

The previous prime is 480561240659. The next prime is 480561240673. The reversal of 480561240661 is 166042165084.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 478699318161 + 1861922500 = 691881^2 + 43150^2 .

It is a cyclic number.

It is not a de Polignac number, because 480561240661 - 2¹ = 480561240659 is a prime.

Together with 480561240659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (480561240361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240280620330 + 240280620331.

It is an arithmetic number, because the mean of its divisors is an integer number (240280620331).

Almost surely, 2^480561240661 is an apocalyptic number.

It is an amenable number.

480561240661 is a deficient number, since it is larger than the sum of its proper divisors (1).

480561240661 is an equidigital number, since it uses as much as digits as its factorization.

480561240661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 480561240661 in words is "four hundred eighty billion, five hundred sixty-one million, two hundred forty thousand, six hundred sixty-one".