195304536720 has 400 divisors, whose sum is σ = 723521267568. Its totient is φ = 48656056320.

The previous prime is 195304536709. The next prime is 195304536743. The reversal of 195304536720 is 27635403591.

195304536720 is a `hidden beast` number, since 1 + 9 + 530 + 4 + 53 + 67 + 2 + 0 = 666.

195304536720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 12486721536 + 182817815184 = 111744^2 + 427572^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15085450 + ... + 15098390.

Almost surely, 2^195304536720 is an apocalyptic number.

195304536720 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 195304536720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361760633784).

195304536720 is an abundant number, since it is smaller than the sum of its proper divisors (528216730848).

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

195304536720 is a wasteful number, since it uses less digits than its factorization.

195304536720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13120 (or 13105 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The spelling of 195304536720 in words is "one hundred ninety-five billion, three hundred four million, five hundred thirty-six thousand, seven hundred twenty".