65651005561607 has 2 divisors, whose sum is σ = 65651005561608. Its totient is φ = 65651005561606.

The previous prime is 65651005561541. The next prime is 65651005561627. The reversal of 65651005561607 is 70616550015656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65651005561607 - 2²⁴ = 65650988784391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65651005561627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32825502780803 + 32825502780804.

It is an arithmetic number, because the mean of its divisors is an integer number (32825502780804).

Almost surely, 2^{65651005561607} is an apocalyptic number.

65651005561607 is a deficient number, since it is larger than the sum of its proper divisors (1).

65651005561607 is an equidigital number, since it uses as much as digits as its factorization.

65651005561607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670000, while the sum is 53.

The spelling of 65651005561607 in words is "sixty-five trillion, six hundred fifty-one billion, five million, five hundred sixty-one thousand, six hundred seven".