195456545642 has 8 divisors (see below), whose sum is σ = 294325616196. Its totient is φ = 97348006912.

The previous prime is 195456545633. The next prime is 195456545681. The reversal of 195456545642 is 246545654591.

It can be written as a sum of positive squares in 2 ways, for example, as 195303008761 + 153536881 = 441931^2 + 12391^2 .

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

It is a super-2 number, since 2×195456545642² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190132313 + ... + 190133340.

Almost surely, 2^195456545642 is an apocalyptic number.

195456545642 is a deficient number, since it is larger than the sum of its proper divisors (98869070554).

195456545642 is a wasteful number, since it uses less digits than its factorization.

195456545642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380265912.

The product of its digits is 25920000, while the sum is 56.

The spelling of 195456545642 in words is "one hundred ninety-five billion, four hundred fifty-six million, five hundred forty-five thousand, six hundred forty-two".