196978675585620 has 192 divisors, whose sum is σ = 561604703063040. Its totient is φ = 51577016524800.

The previous prime is 196978675585613. The next prime is 196978675585621. The reversal of 196978675585620 is 26585576879691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196978675585621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 906620200 + ... + 906837440.

It is an arithmetic number, because the mean of its divisors is an integer number (2925024495120).

Almost surely, 2^{196978675585620} is an apocalyptic number.

196978675585620 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 196978675585620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280802351531520).

196978675585620 is an abundant number, since it is smaller than the sum of its proper divisors (364626027477420).

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

196978675585620 is a wasteful number, since it uses less digits than its factorization.

196978675585620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218386 (or 218384 counting only the distinct ones).

The product of its (nonzero) digits is 13716864000, while the sum is 84.

The spelling of 196978675585620 in words is "one hundred ninety-six trillion, nine hundred seventy-eight billion, six hundred seventy-five million, five hundred eighty-five thousand, six hundred twenty".