161074663 has 2 divisors, whose sum is σ = 161074664. Its totient is φ = 161074662.

The previous prime is 161074651. The next prime is 161074679. The reversal of 161074663 is 366470161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161074663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161074163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80537331 + 80537332.

It is an arithmetic number, because the mean of its divisors is an integer number (80537332).

Almost surely, 2^161074663 is an apocalyptic number.

161074663 is a deficient number, since it is larger than the sum of its proper divisors (1).

161074663 is an equidigital number, since it uses as much as digits as its factorization.

161074663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 161074663 is about 12691.5193337914. The cubic root of 161074663 is about 544.0962639172.

The spelling of 161074663 in words is "one hundred sixty-one million, seventy-four thousand, six hundred sixty-three".