5966400161 has 2 divisors, whose sum is σ = 5966400162. Its totient is φ = 5966400160.

The previous prime is 5966400133. The next prime is 5966400211. The reversal of 5966400161 is 1610046695.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5872310161 + 94090000 = 76631^2 + 9700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5966400161 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5966400131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2983200080 + 2983200081.

It is an arithmetic number, because the mean of its divisors is an integer number (2983200081).

Almost surely, 2^5966400161 is an apocalyptic number.

It is an amenable number.

5966400161 is a deficient number, since it is larger than the sum of its proper divisors (1).

5966400161 is an equidigital number, since it uses as much as digits as its factorization.

5966400161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 5966400161 is about 77242.4764038544. The cubic root of 5966400161 is about 1813.7222992782.

The spelling of 5966400161 in words is "five billion, nine hundred sixty-six million, four hundred thousand, one hundred sixty-one".