195565487040 has 672 divisors, whose sum is σ = 842526696960. Its totient is φ = 40449024000.

The previous prime is 195565487027. The next prime is 195565487081. The reversal of 195565487040 is 40784565591.

It is a happy number.

195565487040 is a `hidden beast` number, since 1 + 9 + 5 + 56 + 548 + 7 + 0 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 50781115 + ... + 50784965.

Almost surely, 2^195565487040 is an apocalyptic number.

195565487040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195565487040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421263348480).

195565487040 is an abundant number, since it is smaller than the sum of its proper divisors (646961209920).

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

195565487040 is a wasteful number, since it uses less digits than its factorization.

195565487040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121 (or 4108 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 195565487040 in words is "one hundred ninety-five billion, five hundred sixty-five million, four hundred eighty-seven thousand, forty".