195730575520 has 48 divisors (see below), whose sum is σ = 462993978888. Its totient is φ = 78193945600.

The previous prime is 195730575451. The next prime is 195730575583. The reversal of 195730575520 is 25575037591.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 112839559056 + 82891016464 = 335916^2 + 287908^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639931 + ... + 894970.

Almost surely, 2^195730575520 is an apocalyptic number.

195730575520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195730575520 is an abundant number, since it is smaller than the sum of its proper divisors (267263403368).

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

195730575520 is a wasteful number, since it uses less digits than its factorization.

195730575520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535713 (or 1535705 counting only the distinct ones).

The product of its (nonzero) digits is 1653750, while the sum is 49.

The spelling of 195730575520 in words is "one hundred ninety-five billion, seven hundred thirty million, five hundred seventy-five thousand, five hundred twenty".