161411455446427 has 2 divisors, whose sum is σ = 161411455446428. Its totient is φ = 161411455446426.

The previous prime is 161411455446413. The next prime is 161411455446463. The reversal of 161411455446427 is 724644554114161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161411455446427 is a prime.

It is not a weakly prime, because it can be changed into another prime (161411455446407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80705727723213 + 80705727723214.

It is an arithmetic number, because the mean of its divisors is an integer number (80705727723214).

Almost surely, 2^{161411455446427} is an apocalyptic number.

161411455446427 is a deficient number, since it is larger than the sum of its proper divisors (1).

161411455446427 is an equidigital number, since it uses as much as digits as its factorization.

161411455446427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12902400, while the sum is 55.

The spelling of 161411455446427 in words is "one hundred sixty-one trillion, four hundred eleven billion, four hundred fifty-five million, four hundred forty-six thousand, four hundred twenty-seven".