3640331323201 has 2 divisors, whose sum is σ = 3640331323202. Its totient is φ = 3640331323200.

The previous prime is 3640331323157. The next prime is 3640331323217. The reversal of 3640331323201 is 1023231330463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3045583425600 + 594747897601 = 1745160^2 + 771199^2 .

It is a cyclic number.

It is not a de Polignac number, because 3640331323201 - 2²⁷ = 3640197105473 is a prime.

It is not a weakly prime, because it can be changed into another prime (3640331323231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820165661600 + 1820165661601.

It is an arithmetic number, because the mean of its divisors is an integer number (1820165661601).

Almost surely, 2^{3640331323201} is an apocalyptic number.

It is an amenable number.

3640331323201 is a deficient number, since it is larger than the sum of its proper divisors (1).

3640331323201 is an equidigital number, since it uses as much as digits as its factorization.

3640331323201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 3640331323201 its reverse (1023231330463), we get a palindrome (4663562653664).

The spelling of 3640331323201 in words is "three trillion, six hundred forty billion, three hundred thirty-one million, three hundred twenty-three thousand, two hundred one".