196581168 has 240 divisors, whose sum is σ = 675956736. Its totient is φ = 54120960.

The previous prime is 196581107. The next prime is 196581181. The reversal of 196581168 is 861185691.

196581168 is a `hidden beast` number, since 1 + 9 + 6 + 581 + 1 + 68 = 666.

It is a super-2 number, since 2×196581168² = 77288311224488448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 843580 + ... + 843812.

Almost surely, 2^196581168 is an apocalyptic number.

196581168 is a gapful number since it is divisible by the number (18) 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 196581168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337978368).

196581168 is an abundant number, since it is smaller than the sum of its proper divisors (479375568).

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

196581168 is a wasteful number, since it uses less digits than its factorization.

196581168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 276 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 196581168 is about 14020.7406366426. The cubic root of 196581168 is about 581.4521361484.

The spelling of 196581168 in words is "one hundred ninety-six million, five hundred eighty-one thousand, one hundred sixty-eight".