6435666053 has 2 divisors, whose sum is σ = 6435666054. Its totient is φ = 6435666052.

The previous prime is 6435666031. The next prime is 6435666059. The reversal of 6435666053 is 3506665346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5585768644 + 849897409 = 74738^2 + 29153^2 .

It is a cyclic number.

It is not a de Polignac number, because 6435666053 - 2⁶ = 6435665989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6435665995 and 6435666013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6435666059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3217833026 + 3217833027.

It is an arithmetic number, because the mean of its divisors is an integer number (3217833027).

Almost surely, 2^6435666053 is an apocalyptic number.

It is an amenable number.

6435666053 is a deficient number, since it is larger than the sum of its proper divisors (1).

6435666053 is an equidigital number, since it uses as much as digits as its factorization.

6435666053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 44.

The square root of 6435666053 is about 80222.6031302899. The cubic root of 6435666053 is about 1860.0780455362.

The spelling of 6435666053 in words is "six billion, four hundred thirty-five million, six hundred sixty-six thousand, fifty-three".