16191611098 has 16 divisors (see below), whose sum is σ = 26161659720. Its totient is φ = 7471342656.

The previous prime is 16191611071. The next prime is 16191611113. The reversal of 16191611098 is 89011619161.

It can be written as a sum of positive squares in 4 ways, for example, as 1588580449 + 14603030649 = 39857^2 + 120843^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48508 + ... + 186376.

Almost surely, 2^16191611098 is an apocalyptic number.

16191611098 is a deficient number, since it is larger than the sum of its proper divisors (9970048622).

16191611098 is a wasteful number, since it uses less digits than its factorization.

16191611098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142401.

The product of its (nonzero) digits is 23328, while the sum is 43.

The spelling of 16191611098 in words is "sixteen billion, one hundred ninety-one million, six hundred eleven thousand, ninety-eight".