546520321601 has 2 divisors, whose sum is σ = 546520321602. Its totient is φ = 546520321600.

The previous prime is 546520321591. The next prime is 546520321609. The reversal of 546520321601 is 106123025645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 425417017600 + 121103304001 = 652240^2 + 347999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-546520321601 is a prime.

It is not a weakly prime, because it can be changed into another prime (546520321609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273260160800 + 273260160801.

It is an arithmetic number, because the mean of its divisors is an integer number (273260160801).

Almost surely, 2^546520321601 is an apocalyptic number.

It is an amenable number.

546520321601 is a deficient number, since it is larger than the sum of its proper divisors (1).

546520321601 is an equidigital number, since it uses as much as digits as its factorization.

546520321601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 546520321601 in words is "five hundred forty-six billion, five hundred twenty million, three hundred twenty-one thousand, six hundred one".