16110531197 has 2 divisors, whose sum is σ = 16110531198. Its totient is φ = 16110531196.

The previous prime is 16110531193. The next prime is 16110531259. The reversal of 16110531197 is 79113501161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14595297721 + 1515233476 = 120811^2 + 38926^2 .

It is an emirp because it is prime and its reverse (79113501161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16110531197 - 2² = 16110531193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16110531193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8055265598 + 8055265599.

It is an arithmetic number, because the mean of its divisors is an integer number (8055265599).

Almost surely, 2^16110531197 is an apocalyptic number.

It is an amenable number.

16110531197 is a deficient number, since it is larger than the sum of its proper divisors (1).

16110531197 is an equidigital number, since it uses as much as digits as its factorization.

16110531197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 35.

The spelling of 16110531197 in words is "sixteen billion, one hundred ten million, five hundred thirty-one thousand, one hundred ninety-seven".