199109199671184 has 160 divisors (see below), whose sum is σ = 563004069433344. Its totient is φ = 60134458890240.

The previous prime is 199109199671167. The next prime is 199109199671243. The reversal of 199109199671184 is 481176991901991.

199109199671184 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220629097 + ... + 221529719.

Almost surely, 2^{199109199671184} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199109199671184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281502034716672).

199109199671184 is an abundant number, since it is smaller than the sum of its proper divisors (363894869762160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199109199671184 is a wasteful number, since it uses less digits than its factorization.

199109199671184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902045 (or 902039 counting only the distinct ones).

The product of its (nonzero) digits is 79361856, while the sum is 75.

The spelling of 199109199671184 in words is "one hundred ninety-nine trillion, one hundred nine billion, one hundred ninety-nine million, six hundred seventy-one thousand, one hundred eighty-four".