3161673440657 has 2 divisors, whose sum is σ = 3161673440658. Its totient is φ = 3161673440656.

The previous prime is 3161673440603. The next prime is 3161673440687. The reversal of 3161673440657 is 7560443761613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2222720192641 + 938953248016 = 1490879^2 + 968996^2 .

It is a cyclic number.

It is not a de Polignac number, because 3161673440657 - 2⁶ = 3161673440593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3161673440599 and 3161673440608.

It is not a weakly prime, because it can be changed into another prime (3161673440687) 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, 1580836720328 + 1580836720329.

It is an arithmetic number, because the mean of its divisors is an integer number (1580836720329).

Almost surely, 2^{3161673440657} is an apocalyptic number.

It is an amenable number.

3161673440657 is a deficient number, since it is larger than the sum of its proper divisors (1).

3161673440657 is an equidigital number, since it uses as much as digits as its factorization.

3161673440657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7620480, while the sum is 53.

The spelling of 3161673440657 in words is "three trillion, one hundred sixty-one billion, six hundred seventy-three million, four hundred forty thousand, six hundred fifty-seven".