197446916520 has 256 divisors, whose sum is σ = 760632768000. Its totient is φ = 44623484928.

The previous prime is 197446916497. The next prime is 197446916521. The reversal of 197446916520 is 25619644791.

197446916520 is a `hidden beast` number, since 1 + 9 + 7 + 44 + 69 + 16 + 520 = 666.

197446916520 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (197446916521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 526114 + ... + 819566.

It is an arithmetic number, because the mean of its divisors is an integer number (2971221750).

Almost surely, 2^197446916520 is an apocalyptic number.

197446916520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197446916520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380316384000).

197446916520 is an abundant number, since it is smaller than the sum of its proper divisors (563185851480).

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

197446916520 is a wasteful number, since it uses less digits than its factorization.

197446916520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293569 (or 293559 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 197446916520 in words is "one hundred ninety-seven billion, four hundred forty-six million, nine hundred sixteen thousand, five hundred twenty".