168161607007 has 2 divisors, whose sum is σ = 168161607008. Its totient is φ = 168161607006.

The previous prime is 168161606981. The next prime is 168161607041. The reversal of 168161607007 is 700706161861.

It is a weak prime.

It is an emirp because it is prime and its reverse (700706161861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168161607007 - 2³⁵ = 133801868639 is a prime.

It is a super-2 number, since 2×168161607007² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168161607067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84080803503 + 84080803504.

It is an arithmetic number, because the mean of its divisors is an integer number (84080803504).

Almost surely, 2^168161607007 is an apocalyptic number.

168161607007 is a deficient number, since it is larger than the sum of its proper divisors (1).

168161607007 is an equidigital number, since it uses as much as digits as its factorization.

168161607007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 43.

Adding to 168161607007 its reverse (700706161861), we get a palindrome (868867768868).

The spelling of 168161607007 in words is "one hundred sixty-eight billion, one hundred sixty-one million, six hundred seven thousand, seven".