36038133661 has 2 divisors, whose sum is σ = 36038133662. Its totient is φ = 36038133660.

The previous prime is 36038133619. The next prime is 36038133673. The reversal of 36038133661 is 16633183063.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27215100900 + 8823032761 = 164970^2 + 93931^2 .

It is a cyclic number.

It is not a de Polignac number, because 36038133661 - 2⁹ = 36038133149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36038133601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18019066830 + 18019066831.

It is an arithmetic number, because the mean of its divisors is an integer number (18019066831).

Almost surely, 2^36038133661 is an apocalyptic number.

It is an amenable number.

36038133661 is a deficient number, since it is larger than the sum of its proper divisors (1).

36038133661 is an equidigital number, since it uses as much as digits as its factorization.

36038133661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 40.

The spelling of 36038133661 in words is "thirty-six billion, thirty-eight million, one hundred thirty-three thousand, six hundred sixty-one".