73366661 has 2 divisors, whose sum is σ = 73366662. Its totient is φ = 73366660.

The previous prime is 73366649. The next prime is 73366673. The reversal of 73366661 is 16666337.

It is a balanced prime because it is at equal distance from previous prime (73366649) and next prime (73366673).

It can be written as a sum of positive squares in only one way, i.e., 67141636 + 6225025 = 8194^2 + 2495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73366661 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 (73366621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36683330 + 36683331.

It is an arithmetic number, because the mean of its divisors is an integer number (36683331).

Almost surely, 2^73366661 is an apocalyptic number.

It is an amenable number.

73366661 is a deficient number, since it is larger than the sum of its proper divisors (1).

73366661 is an equidigital number, since it uses as much as digits as its factorization.

73366661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 38.

The square root of 73366661 is about 8565.4340812360. The cubic root of 73366661 is about 418.6324777207.

The spelling of 73366661 in words is "seventy-three million, three hundred sixty-six thousand, six hundred sixty-one".