32340663661 has 2 divisors, whose sum is σ = 32340663662. Its totient is φ = 32340663660.

The previous prime is 32340663637. The next prime is 32340663673. The reversal of 32340663661 is 16636604323.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24471909225 + 7868754436 = 156435^2 + 88706^2 .

It is an emirp because it is prime and its reverse (16636604323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32340663661 - 2²¹ = 32338566509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32340667661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16170331830 + 16170331831.

It is an arithmetic number, because the mean of its divisors is an integer number (16170331831).

Almost surely, 2^32340663661 is an apocalyptic number.

It is an amenable number.

32340663661 is a deficient number, since it is larger than the sum of its proper divisors (1).

32340663661 is an equidigital number, since it uses as much as digits as its factorization.

32340663661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 40.

The spelling of 32340663661 in words is "thirty-two billion, three hundred forty million, six hundred sixty-three thousand, six hundred sixty-one".