67334076661 has 2 divisors, whose sum is σ = 67334076662. Its totient is φ = 67334076660.

The previous prime is 67334076647. The next prime is 67334076827. The reversal of 67334076661 is 16667043376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41211436036 + 26122640625 = 203006^2 + 161625^2 .

It is a cyclic number.

It is not a de Polignac number, because 67334076661 - 2¹⁷ = 67333945589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67334076631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33667038330 + 33667038331.

It is an arithmetic number, because the mean of its divisors is an integer number (33667038331).

Almost surely, 2^67334076661 is an apocalyptic number.

It is an amenable number.

67334076661 is a deficient number, since it is larger than the sum of its proper divisors (1).

67334076661 is an equidigital number, since it uses as much as digits as its factorization.

67334076661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 49.

The spelling of 67334076661 in words is "sixty-seven billion, three hundred thirty-four million, seventy-six thousand, six hundred sixty-one".