196561651104 has 384 divisors, whose sum is σ = 706692833280. Its totient is φ = 51760622592.

The previous prime is 196561651067. The next prime is 196561651171. The reversal of 196561651104 is 401156165691.

196561651104 is a `hidden beast` number, since 19 + 6 + 5 + 616 + 5 + 1 + 10 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 196561651104.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 65020537 + ... + 65023559.

It is an arithmetic number, because the mean of its divisors is an integer number (1840345920).

Almost surely, 2^196561651104 is an apocalyptic number.

196561651104 is a gapful number since it is divisible by the number (14) 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 196561651104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353346416640).

196561651104 is an abundant number, since it is smaller than the sum of its proper divisors (510131182176).

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

196561651104 is a wasteful number, since it uses less digits than its factorization.

196561651104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889 (or 3875 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 196561651104 in words is "one hundred ninety-six billion, five hundred sixty-one million, six hundred fifty-one thousand, one hundred four".