16196742961851 has 16 divisors (see below), whose sum is σ = 21722448867840. Its totient is φ = 10734444120480.

The previous prime is 16196742961837. The next prime is 16196742961933. The reversal of 16196742961851 is 15816924769161.

It is not a de Polignac number, because 16196742961851 - 2⁶ = 16196742961787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16196742961051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4367416 + ... + 7174106.

It is an arithmetic number, because the mean of its divisors is an integer number (1357653054240).

Almost surely, 2^{16196742961851} is an apocalyptic number.

16196742961851 is a deficient number, since it is larger than the sum of its proper divisors (5525705905989).

16196742961851 is a wasteful number, since it uses less digits than its factorization.

16196742961851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817986.

The product of its digits is 39191040, while the sum is 66.

The spelling of 16196742961851 in words is "sixteen trillion, one hundred ninety-six billion, seven hundred forty-two million, nine hundred sixty-one thousand, eight hundred fifty-one".