199500116051401 has 15 divisors (see below), whose sum is σ = 219450645012765. Its totient is φ = 181362188175300.

The previous prime is 199500116051399. The next prime is 199500116051539. The reversal of 199500116051401 is 104150611005991.

The square root of 199500116051401 is 14124451.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 199500116051401 - 2¹ = 199500116051399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199500116031401) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1709000206 + ... + 1709116936.

It is an arithmetic number, because the mean of its divisors is an integer number (14630043000851).

Almost surely, 2^{199500116051401} is an apocalyptic number.

199500116051401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

199500116051401 is the 14124451-st square number.

199500116051401 is the 7062226-th centered octagonal number.

It is an amenable number.

199500116051401 is a deficient number, since it is larger than the sum of its proper divisors (19950528961364).

199500116051401 is an frugal number, since it uses more digits than its factorization.

199500116051401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233506 (or 116742 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 43.

The spelling of 199500116051401 in words is "one hundred ninety-nine trillion, five hundred billion, one hundred sixteen million, fifty-one thousand, four hundred one".