32064067661 has 2 divisors, whose sum is σ = 32064067662. Its totient is φ = 32064067660.

The previous prime is 32064067649. The next prime is 32064067663. The reversal of 32064067661 is 16676046023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21813517636 + 10250550025 = 147694^2 + 101245^2 .

It is a cyclic number.

It is not a de Polignac number, because 32064067661 - 2⁶ = 32064067597 is a prime.

Together with 32064067663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32064067663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16032033830 + 16032033831.

It is an arithmetic number, because the mean of its divisors is an integer number (16032033831).

Almost surely, 2^32064067661 is an apocalyptic number.

It is an amenable number.

32064067661 is a deficient number, since it is larger than the sum of its proper divisors (1).

32064067661 is an equidigital number, since it uses as much as digits as its factorization.

32064067661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 41.

The spelling of 32064067661 in words is "thirty-two billion, sixty-four million, sixty-seven thousand, six hundred sixty-one".