167673211961 has 2 divisors, whose sum is σ = 167673211962. Its totient is φ = 167673211960.

The previous prime is 167673211949. The next prime is 167673211969. The reversal of 167673211961 is 169112376761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167398812736 + 274399225 = 409144^2 + 16565^2 .

It is an emirp because it is prime and its reverse (169112376761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 167673211961 - 2¹⁰ = 167673210937 is a prime.

It is a super-2 number, since 2×167673211961² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (167673211969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83836605980 + 83836605981.

It is an arithmetic number, because the mean of its divisors is an integer number (83836605981).

Almost surely, 2^167673211961 is an apocalyptic number.

It is an amenable number.

167673211961 is a deficient number, since it is larger than the sum of its proper divisors (1).

167673211961 is an equidigital number, since it uses as much as digits as its factorization.

167673211961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 50.

The spelling of 167673211961 in words is "one hundred sixty-seven billion, six hundred seventy-three million, two hundred eleven thousand, nine hundred sixty-one".