199216574825 has 12 divisors (see below), whose sum is σ = 247034670540. Its totient is φ = 159369312960.

The previous prime is 199216574797. The next prime is 199216574849. The reversal of 199216574825 is 528475612991.

It can be written as a sum of positive squares in 6 ways, for example, as 3005670976 + 196210903849 = 54824^2 + 442957^2 .

It is not a de Polignac number, because 199216574825 - 2⁸ = 199216574569 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, 1345367 + ... + 1486083.

It is an arithmetic number, because the mean of its divisors is an integer number (20586222545).

Almost surely, 2^199216574825 is an apocalyptic number.

It is an amenable number.

199216574825 is a deficient number, since it is larger than the sum of its proper divisors (47818095715).

199216574825 is a wasteful number, since it uses less digits than its factorization.

199216574825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197356 (or 197351 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 59.

The spelling of 199216574825 in words is "one hundred ninety-nine billion, two hundred sixteen million, five hundred seventy-four thousand, eight hundred twenty-five".