195563228618 has 8 divisors (see below), whose sum is σ = 294300364512. Its totient is φ = 97463107116.

The previous prime is 195563228611. The next prime is 195563228647. The reversal of 195563228618 is 816822365591.

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

It is a super-2 number, since 2×195563228618² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (195563228611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159252830 + ... + 159254057.

It is an arithmetic number, because the mean of its divisors is an integer number (36787545564).

Almost surely, 2^195563228618 is an apocalyptic number.

195563228618 is a deficient number, since it is larger than the sum of its proper divisors (98737135894).

195563228618 is a wasteful number, since it uses less digits than its factorization.

195563228618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318507196.

The product of its digits is 6220800, while the sum is 56.

The spelling of 195563228618 in words is "one hundred ninety-five billion, five hundred sixty-three million, two hundred twenty-eight thousand, six hundred eighteen".