16681198070 has 32 divisors (see below), whose sum is σ = 30404959200. Its totient is φ = 6588391680.

The previous prime is 16681198057. The next prime is 16681198073. The reversal of 16681198070 is 7089118661.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16681198073) 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, 1838906 + ... + 1847954.

It is an arithmetic number, because the mean of its divisors is an integer number (950154975).

Almost surely, 2^16681198070 is an apocalyptic number.

16681198070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16681198070 is a deficient number, since it is larger than the sum of its proper divisors (13723761130).

16681198070 is a wasteful number, since it uses less digits than its factorization.

16681198070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11360.

The product of its (nonzero) digits is 145152, while the sum is 47.

The spelling of 16681198070 in words is "sixteen billion, six hundred eighty-one million, one hundred ninety-eight thousand, seventy".