16820696195 has 16 divisors (see below), whose sum is σ = 20514264960. Its totient is φ = 13238169984.

The previous prime is 16820696177. The next prime is 16820696197. The reversal of 16820696195 is 59169602861.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16820696195 - 2²⁰ = 16819647619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16820696197) 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 15 ways as a sum of consecutive naturals, for example, 32549 + ... + 186281.

It is an arithmetic number, because the mean of its divisors is an integer number (1282141560).

Almost surely, 2^16820696195 is an apocalyptic number.

16820696195 is a deficient number, since it is larger than the sum of its proper divisors (3693568765).

16820696195 is a wasteful number, since it uses less digits than its factorization.

16820696195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154094.

The product of its (nonzero) digits is 1399680, while the sum is 53.

The spelling of 16820696195 in words is "sixteen billion, eight hundred twenty million, six hundred ninety-six thousand, one hundred ninety-five".