3650366657549 has 2 divisors, whose sum is σ = 3650366657550. Its totient is φ = 3650366657548.

The previous prime is 3650366657519. The next prime is 3650366657603. The reversal of 3650366657549 is 9457566630563.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3412849812100 + 237516845449 = 1847390^2 + 487357^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3650366657549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3650366657519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1825183328774 + 1825183328775.

It is an arithmetic number, because the mean of its divisors is an integer number (1825183328775).

Almost surely, 2^{3650366657549} is an apocalyptic number.

It is an amenable number.

3650366657549 is a deficient number, since it is larger than the sum of its proper divisors (1).

3650366657549 is an equidigital number, since it uses as much as digits as its factorization.

3650366657549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416000, while the sum is 65.

The spelling of 3650366657549 in words is "three trillion, six hundred fifty billion, three hundred sixty-six million, six hundred fifty-seven thousand, five hundred forty-nine".