196568142577 has 8 divisors (see below), whose sum is σ = 203584769640. Its totient is φ = 189567409920.

The previous prime is 196568142569. The next prime is 196568142593. The reversal of 196568142577 is 775241865691.

It can be written as a sum of positive squares in 4 ways, for example, as 25830596961 + 170737545616 = 160719^2 + 413204^2 .

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 196568142577 - 2³ = 196568142569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196568142527) 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, 3948424 + ... + 3997897.

It is an arithmetic number, because the mean of its divisors is an integer number (25448096205).

Almost surely, 2^196568142577 is an apocalyptic number.

It is an amenable number.

196568142577 is a deficient number, since it is larger than the sum of its proper divisors (7016627063).

196568142577 is an equidigital number, since it uses as much as digits as its factorization.

196568142577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947203.

The product of its digits is 25401600, while the sum is 61.

The spelling of 196568142577 in words is "one hundred ninety-six billion, five hundred sixty-eight million, one hundred forty-two thousand, five hundred seventy-seven".