331605600901 has 2 divisors, whose sum is σ = 331605600902. Its totient is φ = 331605600900.

The previous prime is 331605600847. The next prime is 331605600917. The reversal of 331605600901 is 109006506133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243639972801 + 87965628100 = 493599^2 + 296590^2 .

It is a cyclic number.

It is not a de Polignac number, because 331605600901 - 2¹¹ = 331605598853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331605600701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165802800450 + 165802800451.

It is an arithmetic number, because the mean of its divisors is an integer number (165802800451).

Almost surely, 2^331605600901 is an apocalyptic number.

It is an amenable number.

331605600901 is a deficient number, since it is larger than the sum of its proper divisors (1).

331605600901 is an equidigital number, since it uses as much as digits as its factorization.

331605600901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 34.

The spelling of 331605600901 in words is "three hundred thirty-one billion, six hundred five million, six hundred thousand, nine hundred one".