197621146116 has 45 divisors (see below), whose sum is σ = 516641631429. Its totient is φ = 65871048096.

The previous prime is 197621146097. The next prime is 197621146123. The reversal of 197621146116 is 611641126791.

It is a happy number.

The square root of 197621146116 is 444546.

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

197621146116 is a `hidden beast` number, since 1 + 9 + 7 + 6 + 21 + 1 + 4 + 611 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 186235402500 + 11385743616 = 431550^2 + 106704^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 7989480 + ... + 8014176.

Almost surely, 2^197621146116 is an apocalyptic number.

197621146116 is the 444546-th square number.

It is an amenable number.

197621146116 is an abundant number, since it is smaller than the sum of its proper divisors (319020485313).

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

197621146116 is an frugal number, since it uses more digits than its factorization.

197621146116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49410 (or 24702 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The spelling of 197621146116 in words is "one hundred ninety-seven billion, six hundred twenty-one million, one hundred forty-six thousand, one hundred sixteen".