3661220302291 has 2 divisors, whose sum is σ = 3661220302292. Its totient is φ = 3661220302290.

The previous prime is 3661220302219. The next prime is 3661220302321. The reversal of 3661220302291 is 1922030221663.

Together with previous prime (3661220302219) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (1922030221663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3661220302291 - 2³⁷ = 3523781348819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3661220302291.

It is not a weakly prime, because it can be changed into another prime (3661220302211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830610151145 + 1830610151146.

It is an arithmetic number, because the mean of its divisors is an integer number (1830610151146).

Almost surely, 2^{3661220302291} is an apocalyptic number.

3661220302291 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661220302291 is an equidigital number, since it uses as much as digits as its factorization.

3661220302291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 3661220302291 in words is "three trillion, six hundred sixty-one billion, two hundred twenty million, three hundred two thousand, two hundred ninety-one".