943405670161 has 2 divisors, whose sum is σ = 943405670162. Its totient is φ = 943405670160.

The previous prime is 943405670143. The next prime is 943405670231. The reversal of 943405670161 is 161076504349.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 869397732225 + 74007937936 = 932415^2 + 272044^2 .

It is a cyclic number.

It is not a de Polignac number, because 943405670161 - 2¹¹ = 943405668113 is a prime.

It is not a weakly prime, because it can be changed into another prime (943405670861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471702835080 + 471702835081.

It is an arithmetic number, because the mean of its divisors is an integer number (471702835081).

Almost surely, 2^943405670161 is an apocalyptic number.

It is an amenable number.

943405670161 is a deficient number, since it is larger than the sum of its proper divisors (1).

943405670161 is an equidigital number, since it uses as much as digits as its factorization.

943405670161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 943405670161 in words is "nine hundred forty-three billion, four hundred five million, six hundred seventy thousand, one hundred sixty-one".