3650221756633 has 2 divisors, whose sum is σ = 3650221756634. Its totient is φ = 3650221756632.

The previous prime is 3650221756619. The next prime is 3650221756661. The reversal of 3650221756633 is 3366571220563.

3650221756633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3367269040144 + 282952716489 = 1835012^2 + 531933^2 .

It is a cyclic number.

It is not a de Polignac number, because 3650221756633 - 2²¹ = 3650219659481 is a prime.

It is not a weakly prime, because it can be changed into another prime (3650221751633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1825110878316 + 1825110878317.

It is an arithmetic number, because the mean of its divisors is an integer number (1825110878317).

Almost surely, 2^{3650221756633} is an apocalyptic number.

It is an amenable number.

3650221756633 is a deficient number, since it is larger than the sum of its proper divisors (1).

3650221756633 is an equidigital number, since it uses as much as digits as its factorization.

3650221756633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 49.

The spelling of 3650221756633 in words is "three trillion, six hundred fifty billion, two hundred twenty-one million, seven hundred fifty-six thousand, six hundred thirty-three".