706640021201 has 2 divisors, whose sum is σ = 706640021202. Its totient is φ = 706640021200.

The previous prime is 706640021161. The next prime is 706640021221. The reversal of 706640021201 is 102120046607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 454816708801 + 251823312400 = 674401^2 + 501820^2 .

It is a cyclic number.

It is not a de Polignac number, because 706640021201 - 2¹⁴ = 706640004817 is a prime.

It is not a weakly prime, because it can be changed into another prime (706640021221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353320010600 + 353320010601.

It is an arithmetic number, because the mean of its divisors is an integer number (353320010601).

Almost surely, 2^706640021201 is an apocalyptic number.

It is an amenable number.

706640021201 is a deficient number, since it is larger than the sum of its proper divisors (1).

706640021201 is an equidigital number, since it uses as much as digits as its factorization.

706640021201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 706640021201 its reverse (102120046607), we get a palindrome (808760067808).

The spelling of 706640021201 in words is "seven hundred six billion, six hundred forty million, twenty-one thousand, two hundred one".