654336341442401 has 2 divisors, whose sum is σ = 654336341442402. Its totient is φ = 654336341442400.

The previous prime is 654336341442389. The next prime is 654336341442461. The reversal of 654336341442401 is 104244143633456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 539232303333376 + 115104038109025 = 23221376^2 + 10728655^2 .

It is a cyclic number.

It is not a de Polignac number, because 654336341442401 - 2¹⁸ = 654336341180257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654336341442401.

It is not a weakly prime, because it can be changed into another prime (654336341442461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327168170721200 + 327168170721201.

It is an arithmetic number, because the mean of its divisors is an integer number (327168170721201).

Almost surely, 2^{654336341442401} is an apocalyptic number.

It is an amenable number.

654336341442401 is a deficient number, since it is larger than the sum of its proper divisors (1).

654336341442401 is an equidigital number, since it uses as much as digits as its factorization.

654336341442401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9953280, while the sum is 50.

The spelling of 654336341442401 in words is "six hundred fifty-four trillion, three hundred thirty-six billion, three hundred forty-one million, four hundred forty-two thousand, four hundred one".