196663867024 has 45 divisors (see below), whose sum is σ = 394731750153. Its totient is φ = 94916342976.

The previous prime is 196663867009. The next prime is 196663867033. The reversal of 196663867024 is 420768366691.

It is a happy number.

The square root of 196663867024 is 443468.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 103125761424 + 93538105600 = 321132^2 + 305840^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 196663867024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 51440377 + ... + 51444199.

Almost surely, 2^196663867024 is an apocalyptic number.

196663867024 is the 443468-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196663867024

196663867024 is an abundant number, since it is smaller than the sum of its proper divisors (198067883129).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196663867024 is an frugal number, since it uses more digits than its factorization.

196663867024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7712 (or 3854 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 196663867024 in words is "one hundred ninety-six billion, six hundred sixty-three million, eight hundred sixty-seven thousand, twenty-four".