199900158249 has 16 divisors (see below), whose sum is σ = 290774419200. Its totient is φ = 121147214160.

The previous prime is 199900158197. The next prime is 199900158251. The reversal of 199900158249 is 942851009991.

It is not a de Polignac number, because 199900158249 - 2⁷ = 199900158121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199900158299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972094 + ... + 1159640.

It is an arithmetic number, because the mean of its divisors is an integer number (18173401200).

Almost surely, 2^199900158249 is an apocalyptic number.

It is an amenable number.

199900158249 is a deficient number, since it is larger than the sum of its proper divisors (90874260951).

199900158249 is a wasteful number, since it uses less digits than its factorization.

199900158249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219860.

The product of its (nonzero) digits is 2099520, while the sum is 57.

The spelling of 199900158249 in words is "one hundred ninety-nine billion, nine hundred million, one hundred fifty-eight thousand, two hundred forty-nine".