16195769543 has 4 divisors (see below), whose sum is σ = 16353010128. Its totient is φ = 16038528960.

The previous prime is 16195769533. The next prime is 16195769581. The reversal of 16195769543 is 34596759161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16195769543 - 2¹² = 16195765447 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 (16195769503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78620138 + ... + 78620343.

It is an arithmetic number, because the mean of its divisors is an integer number (4088252532).

Almost surely, 2^16195769543 is an apocalyptic number.

16195769543 is a deficient number, since it is larger than the sum of its proper divisors (157240585).

16195769543 is a wasteful number, since it uses less digits than its factorization.

16195769543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157240584.

The product of its digits is 6123600, while the sum is 56.

The spelling of 16195769543 in words is "sixteen billion, one hundred ninety-five million, seven hundred sixty-nine thousand, five hundred forty-three".