195055389601 has 2 divisors, whose sum is σ = 195055389602. Its totient is φ = 195055389600.

The previous prime is 195055389577. The next prime is 195055389611. The reversal of 195055389601 is 106983550591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190183210000 + 4872179601 = 436100^2 + 69801^2 .

It is a cyclic number.

It is not a de Polignac number, because 195055389601 - 2⁵ = 195055389569 is a prime.

It is not a weakly prime, because it can be changed into another prime (195055389611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97527694800 + 97527694801.

It is an arithmetic number, because the mean of its divisors is an integer number (97527694801).

Almost surely, 2^195055389601 is an apocalyptic number.

It is an amenable number.

195055389601 is a deficient number, since it is larger than the sum of its proper divisors (1).

195055389601 is an equidigital number, since it uses as much as digits as its factorization.

195055389601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458000, while the sum is 52.

The spelling of 195055389601 in words is "one hundred ninety-five billion, fifty-five million, three hundred eighty-nine thousand, six hundred one".