197339970816 has 180 divisors, whose sum is σ = 588977373600. Its totient is φ = 65719047168.

The previous prime is 197339970761. The next prime is 197339970847. The reversal of 197339970816 is 618079933791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26102845 + ... + 26110403.

It is an arithmetic number, because the mean of its divisors is an integer number (3272096520).

Almost surely, 2^197339970816 is an apocalyptic number.

197339970816 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 197339970816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294488686800).

197339970816 is an abundant number, since it is smaller than the sum of its proper divisors (391637402784).

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

197339970816 is an equidigital number, since it uses as much as digits as its factorization.

197339970816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8846 (or 8823 counting only the distinct ones).

The product of its (nonzero) digits is 15431472, while the sum is 63.

The spelling of 197339970816 in words is "one hundred ninety-seven billion, three hundred thirty-nine million, nine hundred seventy thousand, eight hundred sixteen".