10640434361 has 2 divisors, whose sum is σ = 10640434362. Its totient is φ = 10640434360.

The previous prime is 10640434333. The next prime is 10640434367. The reversal of 10640434361 is 16343404601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8829421225 + 1811013136 = 93965^2 + 42556^2 .

It is a cyclic number.

It is not a de Polignac number, because 10640434361 - 2¹⁰ = 10640433337 is a prime.

It is a super-2 number, since 2×10640434361² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10640434367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5320217180 + 5320217181.

It is an arithmetic number, because the mean of its divisors is an integer number (5320217181).

Almost surely, 2^10640434361 is an apocalyptic number.

It is an amenable number.

10640434361 is a deficient number, since it is larger than the sum of its proper divisors (1).

10640434361 is an equidigital number, since it uses as much as digits as its factorization.

10640434361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 10640434361 its reverse (16343404601), we get a palindrome (26983838962).

The spelling of 10640434361 in words is "ten billion, six hundred forty million, four hundred thirty-four thousand, three hundred sixty-one".