197074385616 has 80 divisors (see below), whose sum is σ = 522577267200. Its totient is φ = 63974415744.

The previous prime is 197074385611. The next prime is 197074385633. The reversal of 197074385616 is 616583470791.

It is a happy number.

197074385616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197074385611) 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 15 ways as a sum of consecutive naturals, for example, 22156 + ... + 628203.

It is an arithmetic number, because the mean of its divisors is an integer number (6532215840).

Almost surely, 2^197074385616 is an apocalyptic number.

197074385616 is a gapful number since it is divisible by the number (16) 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 197074385616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261288633600).

197074385616 is an abundant number, since it is smaller than the sum of its proper divisors (325502881584).

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

197074385616 is a wasteful number, since it uses less digits than its factorization.

197074385616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650536 (or 650530 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 57.

The spelling of 197074385616 in words is "one hundred ninety-seven billion, seventy-four million, three hundred eighty-five thousand, six hundred sixteen".