16031495197 has 4 divisors (see below), whose sum is σ = 16257290976. Its totient is φ = 15805699420.

The previous prime is 16031495177. The next prime is 16031495231. The reversal of 16031495197 is 79159413061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79159413061 = 3499 ⋅22623439.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16031495197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16031495107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112897783 + ... + 112897924.

It is an arithmetic number, because the mean of its divisors is an integer number (4064322744).

Almost surely, 2^16031495197 is an apocalyptic number.

It is an amenable number.

16031495197 is a deficient number, since it is larger than the sum of its proper divisors (225795779).

16031495197 is an equidigital number, since it uses as much as digits as its factorization.

16031495197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225795778.

The product of its (nonzero) digits is 204120, while the sum is 46.

The spelling of 16031495197 in words is "sixteen billion, thirty-one million, four hundred ninety-five thousand, one hundred ninety-seven".