195420580097 has 8 divisors (see below), whose sum is σ = 214050940200. Its totient is φ = 177583001344.

The previous prime is 195420580073. The next prime is 195420580139. The reversal of 195420580097 is 790085024591.

It is a Cunningham number, because it is equal to 442064²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 102474253456 + 92946326641 = 320116^2 + 304871^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195420580097 - 2¹⁰ = 195420579073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195420580037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198194822 + ... + 198195807.

It is an arithmetic number, because the mean of its divisors is an integer number (26756367525).

Almost surely, 2^195420580097 is an apocalyptic number.

195420580097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

195420580097 is a deficient number, since it is larger than the sum of its proper divisors (18630360103).

195420580097 is a wasteful number, since it uses less digits than its factorization.

195420580097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396390675.

The product of its (nonzero) digits is 907200, while the sum is 50.

It can be divided in two parts, 1954205 and 80097, that added together give a palindrome (2034302).

The spelling of 195420580097 in words is "one hundred ninety-five billion, four hundred twenty million, five hundred eighty thousand, ninety-seven".