3661016309 has 2 divisors, whose sum is σ = 3661016310. Its totient is φ = 3661016308.

The previous prime is 3661016297. The next prime is 3661016323. The reversal of 3661016309 is 9036101663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3428453809 + 232562500 = 58553^2 + 15250^2 .

It is a cyclic number.

It is not a de Polignac number, because 3661016309 - 2¹⁶ = 3660950773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3661016399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830508154 + 1830508155.

It is an arithmetic number, because the mean of its divisors is an integer number (1830508155).

Almost surely, 2^3661016309 is an apocalyptic number.

It is an amenable number.

3661016309 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661016309 is an equidigital number, since it uses as much as digits as its factorization.

3661016309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 3661016309 is about 60506.3328007904. The cubic root of 3661016309 is about 1541.2291739655.

The spelling of 3661016309 in words is "three billion, six hundred sixty-one million, sixteen thousand, three hundred nine".