16206197678 has 12 divisors (see below), whose sum is σ = 26720136240. Its totient is φ = 7366453380.

The previous prime is 16206197669. The next prime is 16206197681. The reversal of 16206197678 is 87679160261.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33483638 + ... + 33484121.

It is an arithmetic number, because the mean of its divisors is an integer number (2226678020).

Almost surely, 2^16206197678 is an apocalyptic number.

16206197678 is a deficient number, since it is larger than the sum of its proper divisors (10513938562).

16206197678 is a wasteful number, since it uses less digits than its factorization.

16206197678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66967783 (or 66967772 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 16206197678 in words is "sixteen billion, two hundred six million, one hundred ninety-seven thousand, six hundred seventy-eight".