199161120267 has 12 divisors (see below), whose sum is σ = 290365746840. Its totient is φ = 131533200288.

The previous prime is 199161120253. The next prime is 199161120283. The reversal of 199161120267 is 762021161991.

199161120267 is a `hidden beast` number, since 1 + 9 + 9 + 1 + 611 + 2 + 0 + 26 + 7 = 666.

It is not a de Polignac number, because 199161120267 - 2⁴ = 199161120251 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (199161120247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103405642 + ... + 103407567.

It is an arithmetic number, because the mean of its divisors is an integer number (24197145570).

Almost surely, 2^199161120267 is an apocalyptic number.

199161120267 is a deficient number, since it is larger than the sum of its proper divisors (91204626573).

199161120267 is a wasteful number, since it uses less digits than its factorization.

199161120267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206813322 (or 206813319 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The spelling of 199161120267 in words is "one hundred ninety-nine billion, one hundred sixty-one million, one hundred twenty thousand, two hundred sixty-seven".