199620028311 has 8 divisors (see below), whose sum is σ = 290356404864. Its totient is φ = 120981835320.

The previous prime is 199620028303. The next prime is 199620028313. The reversal of 199620028311 is 113820026991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 199620028311 - 2³ = 199620028303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199620028313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3024545851 + ... + 3024545916.

It is an arithmetic number, because the mean of its divisors is an integer number (36294550608).

Almost surely, 2^199620028311 is an apocalyptic number.

199620028311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

199620028311 is a deficient number, since it is larger than the sum of its proper divisors (90736376553).

199620028311 is a wasteful number, since it uses less digits than its factorization.

199620028311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049091781.

The product of its (nonzero) digits is 46656, while the sum is 42.

The spelling of 199620028311 in words is "one hundred ninety-nine billion, six hundred twenty million, twenty-eight thousand, three hundred eleven".