199646091175 has 6 divisors (see below), whose sum is σ = 247561153088. Its totient is φ = 159716872920.

The previous prime is 199646091157. The next prime is 199646091181. The reversal of 199646091175 is 571190646991.

It is not a de Polignac number, because 199646091175 - 2¹³ = 199646082983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3992921799 + ... + 3992921848.

Almost surely, 2^199646091175 is an apocalyptic number.

199646091175 is a deficient number, since it is larger than the sum of its proper divisors (47915061913).

199646091175 is an equidigital number, since it uses as much as digits as its factorization.

199646091175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7985843657 (or 7985843652 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 58.

The spelling of 199646091175 in words is "one hundred ninety-nine billion, six hundred forty-six million, ninety-one thousand, one hundred seventy-five".