3661655287 has 2 divisors, whose sum is σ = 3661655288. Its totient is φ = 3661655286.

The previous prime is 3661655219. The next prime is 3661655299. The reversal of 3661655287 is 7825561663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3661655287 - 2¹⁵ = 3661622519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3661655287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3661655587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830827643 + 1830827644.

It is an arithmetic number, because the mean of its divisors is an integer number (1830827644).

Almost surely, 2^3661655287 is an apocalyptic number.

3661655287 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661655287 is an equidigital number, since it uses as much as digits as its factorization.

3661655287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 49.

The square root of 3661655287 is about 60511.6128276218. The cubic root of 3661655287 is about 1541.3188352474.

The spelling of 3661655287 in words is "three billion, six hundred sixty-one million, six hundred fifty-five thousand, two hundred eighty-seven".