3661210121683 has 2 divisors, whose sum is σ = 3661210121684. Its totient is φ = 3661210121682.

The previous prime is 3661210121627. The next prime is 3661210121851. The reversal of 3661210121683 is 3861210121663.

3661210121683 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3661210121683 - 2⁴¹ = 1462186866131 is a prime.

It is a super-2 number, since 2×3661210121683² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3661210121483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830605060841 + 1830605060842.

It is an arithmetic number, because the mean of its divisors is an integer number (1830605060842).

Almost surely, 2^{3661210121683} is an apocalyptic number.

3661210121683 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661210121683 is an equidigital number, since it uses as much as digits as its factorization.

3661210121683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 3661210121683 in words is "three trillion, six hundred sixty-one billion, two hundred ten million, one hundred twenty-one thousand, six hundred eighty-three".