65611607 has 2 divisors, whose sum is σ = 65611608. Its totient is φ = 65611606.

The previous prime is 65611589. The next prime is 65611613. The reversal of 65611607 is 70611656.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65611607 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65611307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32805803 + 32805804.

It is an arithmetic number, because the mean of its divisors is an integer number (32805804).

Almost surely, 2^65611607 is an apocalyptic number.

65611607 is a deficient number, since it is larger than the sum of its proper divisors (1).

65611607 is an equidigital number, since it uses as much as digits as its factorization.

65611607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 65611607 is about 8100.0991969235. The cubic root of 65611607 is about 403.3297200839.

The spelling of 65611607 in words is "sixty-five million, six hundred eleven thousand, six hundred seven".