546655556641 has 2 divisors, whose sum is σ = 546655556642. Its totient is φ = 546655556640.

The previous prime is 546655556633. The next prime is 546655556647. The reversal of 546655556641 is 146655556645.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376131983616 + 170523573025 = 613296^2 + 412945^2 .

It is a cyclic number.

It is not a de Polignac number, because 546655556641 - 2³ = 546655556633 is a prime.

It is not a weakly prime, because it can be changed into another prime (546655556647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273327778320 + 273327778321.

It is an arithmetic number, because the mean of its divisors is an integer number (273327778321).

Almost surely, 2^546655556641 is an apocalyptic number.

It is an amenable number.

546655556641 is a deficient number, since it is larger than the sum of its proper divisors (1).

546655556641 is an equidigital number, since it uses as much as digits as its factorization.

546655556641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800000, while the sum is 58.

The spelling of 546655556641 in words is "five hundred forty-six billion, six hundred fifty-five million, five hundred fifty-six thousand, six hundred forty-one".