1546227356161 has 2 divisors, whose sum is σ = 1546227356162. Its totient is φ = 1546227356160.

The previous prime is 1546227356131. The next prime is 1546227356183. The reversal of 1546227356161 is 1616537226451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1542765210561 + 3462145600 = 1242081^2 + 58840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1546227356161 - 2⁷ = 1546227356033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1546227356111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 773113678080 + 773113678081.

It is an arithmetic number, because the mean of its divisors is an integer number (773113678081).

Almost surely, 2^{1546227356161} is an apocalyptic number.

It is an amenable number.

1546227356161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1546227356161 is an equidigital number, since it uses as much as digits as its factorization.

1546227356161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 49.

The spelling of 1546227356161 in words is "one trillion, five hundred forty-six billion, two hundred twenty-seven million, three hundred fifty-six thousand, one hundred sixty-one".