73370067006661 has 2 divisors, whose sum is σ = 73370067006662. Its totient is φ = 73370067006660.

The previous prime is 73370067006553. The next prime is 73370067006727. The reversal of 73370067006661 is 16660076007337.

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., 56773120622436 + 16596946384225 = 7534794^2 + 4073935^2 .

It is a cyclic number.

It is not a de Polignac number, because 73370067006661 - 2³³ = 73361477072069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73370067006599 and 73370067006608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73370067006161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36685033503330 + 36685033503331.

It is an arithmetic number, because the mean of its divisors is an integer number (36685033503331).

Almost surely, 2^{73370067006661} is an apocalyptic number.

It is an amenable number.

73370067006661 is a deficient number, since it is larger than the sum of its proper divisors (1).

73370067006661 is an equidigital number, since it uses as much as digits as its factorization.

73370067006661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4000752, while the sum is 52.

The spelling of 73370067006661 in words is "seventy-three trillion, three hundred seventy billion, sixty-seven million, six thousand, six hundred sixty-one".