3561671606699 has 2 divisors, whose sum is σ = 3561671606700. Its totient is φ = 3561671606698.

The previous prime is 3561671606677. The next prime is 3561671606807. The reversal of 3561671606699 is 9966061761653.

3561671606699 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 3561671606699 - 2³⁶ = 3492952129963 is a prime.

It is a super-2 number, since 2×3561671606699² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3561671606629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1780835803349 + 1780835803350.

It is an arithmetic number, because the mean of its divisors is an integer number (1780835803350).

Almost surely, 2^{3561671606699} is an apocalyptic number.

3561671606699 is a deficient number, since it is larger than the sum of its proper divisors (1).

3561671606699 is an equidigital number, since it uses as much as digits as its factorization.

3561671606699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66134880, while the sum is 65.

The spelling of 3561671606699 in words is "three trillion, five hundred sixty-one billion, six hundred seventy-one million, six hundred six thousand, six hundred ninety-nine".