433167661 has 2 divisors, whose sum is σ = 433167662. Its totient is φ = 433167660.

The previous prime is 433167641. The next prime is 433167673. The reversal of 433167661 is 166761334.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269583561 + 163584100 = 16419^2 + 12790^2 .

It is a cyclic number.

It is not a de Polignac number, because 433167661 - 2⁵ = 433167629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 433167661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (433167601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216583830 + 216583831.

It is an arithmetic number, because the mean of its divisors is an integer number (216583831).

Almost surely, 2^433167661 is an apocalyptic number.

It is an amenable number.

433167661 is a deficient number, since it is larger than the sum of its proper divisors (1).

433167661 is an equidigital number, since it uses as much as digits as its factorization.

433167661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 37.

The square root of 433167661 is about 20812.6802935134. The cubic root of 433167661 is about 756.6331101146.

The spelling of 433167661 in words is "four hundred thirty-three million, one hundred sixty-seven thousand, six hundred sixty-one".