3661288667 has 2 divisors, whose sum is σ = 3661288668. Its totient is φ = 3661288666.

The previous prime is 3661288637. The next prime is 3661288693. The reversal of 3661288667 is 7668821663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3661288667 - 2²⁶ = 3594179803 is a prime.

It is not a weakly prime, because it can be changed into another prime (3661288607) 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, 1830644333 + 1830644334.

It is an arithmetic number, because the mean of its divisors is an integer number (1830644334).

Almost surely, 2^3661288667 is an apocalyptic number.

3661288667 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661288667 is an equidigital number, since it uses as much as digits as its factorization.

3661288667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 53.

The square root of 3661288667 is about 60508.5834159089. The cubic root of 3661288667 is about 1541.2673924683.

The spelling of 3661288667 in words is "three billion, six hundred sixty-one million, two hundred eighty-eight thousand, six hundred sixty-seven".