16167123197 has 2 divisors, whose sum is σ = 16167123198. Its totient is φ = 16167123196.

The previous prime is 16167123169. The next prime is 16167123251. The reversal of 16167123197 is 79132176161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13056718756 + 3110404441 = 114266^2 + 55771^2 .

It is an emirp because it is prime and its reverse (79132176161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16167123197 - 2¹⁶ = 16167057661 is a prime.

It is a super-2 number, since 2×16167123197² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16167123107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8083561598 + 8083561599.

It is an arithmetic number, because the mean of its divisors is an integer number (8083561599).

Almost surely, 2^16167123197 is an apocalyptic number.

It is an amenable number.

16167123197 is a deficient number, since it is larger than the sum of its proper divisors (1).

16167123197 is an equidigital number, since it uses as much as digits as its factorization.

16167123197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 44.

The spelling of 16167123197 in words is "sixteen billion, one hundred sixty-seven million, one hundred twenty-three thousand, one hundred ninety-seven".