195665357048 has 64 divisors (see below), whose sum is σ = 427956696000. Its totient is φ = 83833653120.

The previous prime is 195665357039. The next prime is 195665357089. The reversal of 195665357048 is 840753566591.

It is a happy number.

It is a congruent number.

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, 13375178 + ... + 13389798.

It is an arithmetic number, because the mean of its divisors is an integer number (6686823375).

Almost surely, 2^195665357048 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 195665357048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213978348000).

195665357048 is an abundant number, since it is smaller than the sum of its proper divisors (232291338952).

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

195665357048 is a wasteful number, since it uses less digits than its factorization.

195665357048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19525 (or 19507 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 59.

The spelling of 195665357048 in words is "one hundred ninety-five billion, six hundred sixty-five million, three hundred fifty-seven thousand, forty-eight".