199594700648 has 64 divisors (see below), whose sum is σ = 453132144000. Its totient is φ = 80460748800.

The previous prime is 199594700623. The next prime is 199594700651. The reversal of 199594700648 is 846007495991.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1555748 + ... + 1679148.

It is an arithmetic number, because the mean of its divisors is an integer number (7080189750).

Almost surely, 2^199594700648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199594700648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226566072000).

199594700648 is an abundant number, since it is smaller than the sum of its proper divisors (253537443352).

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

199594700648 is a wasteful number, since it uses less digits than its factorization.

199594700648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125130 (or 125126 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 199594700648 in words is "one hundred ninety-nine billion, five hundred ninety-four million, seven hundred thousand, six hundred forty-eight".