199492743156099 has 64 divisors (see below), whose sum is σ = 285905534423040. Its totient is φ = 123450433666560.

The previous prime is 199492743156079. The next prime is 199492743156139. The reversal of 199492743156099 is 990651347294991.

It is a Cunningham number, because it is equal to 14124190²-1.

It is not a de Polignac number, because 199492743156099 - 2⁸ = 199492743155843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199492743156079) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2217452692 + ... + 2217542654.

It is an arithmetic number, because the mean of its divisors is an integer number (4467273975360).

Almost surely, 2^{199492743156099} is an apocalyptic number.

199492743156099 is a deficient number, since it is larger than the sum of its proper divisors (86412791266941).

199492743156099 is a wasteful number, since it uses less digits than its factorization.

199492743156099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95420.

The product of its (nonzero) digits is 1190427840, while the sum is 78.

The spelling of 199492743156099 in words is "one hundred ninety-nine trillion, four hundred ninety-two billion, seven hundred forty-three million, one hundred fifty-six thousand, ninety-nine".