199196177825 has 12 divisors (see below), whose sum is σ = 261532864620. Its totient is φ = 149983004160.

The previous prime is 199196177759. The next prime is 199196177833. The reversal of 199196177825 is 528771691991.

It can be written as a sum of positive squares in 6 ways, for example, as 11800694161 + 187395483664 = 108631^2 + 432892^2 .

It is not a de Polignac number, because 199196177825 - 2¹⁴ = 199196161441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234348020 + ... + 234348869.

It is an arithmetic number, because the mean of its divisors is an integer number (21794405385).

Almost surely, 2^199196177825 is an apocalyptic number.

It is an amenable number.

199196177825 is a deficient number, since it is larger than the sum of its proper divisors (62336686795).

199196177825 is a wasteful number, since it uses less digits than its factorization.

199196177825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468696916 (or 468696911 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 65.

The spelling of 199196177825 in words is "one hundred ninety-nine billion, one hundred ninety-six million, one hundred seventy-seven thousand, eight hundred twenty-five".