199492743156100 has 27 divisors (see below), whose sum is σ = 432899559143877. Its totient is φ = 79797040765680.

The previous prime is 199492743156079. The next prime is 199492743156139. The reversal of 199492743156100 is 1651347294991.

The square root of 199492743156100 is 14124190.

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

It can be written as a sum of positive squares in only one way, i.e., 71817387536196 + 127675355619904 = 8474514^2 + 11299352^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 140535691 + ... + 141948109.

Almost surely, 2^{199492743156100} is an apocalyptic number.

199492743156100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199492743156100 is the 14124190-th square number.

It is an amenable number.

199492743156100 is an abundant number, since it is smaller than the sum of its proper divisors (233406815987777).

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

199492743156100 is an frugal number, since it uses more digits than its factorization.

199492743156100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824852 (or 1412426 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 199492743156100 in words is "one hundred ninety-nine trillion, four hundred ninety-two billion, seven hundred forty-three million, one hundred fifty-six thousand, one hundred".