196661117 has 8 divisors (see below), whose sum is σ = 214947072. Its totient is φ = 179121600.

The previous prime is 196661089. The next prime is 196661119. The reversal of 196661117 is 711166691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 196661117 - 2²⁰ = 195612541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196661119) 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 7 ways as a sum of consecutive naturals, for example, 186059 + ... + 187112.

It is an arithmetic number, because the mean of its divisors is an integer number (26868384).

Almost surely, 2^196661117 is an apocalyptic number.

196661117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

196661117 is a deficient number, since it is larger than the sum of its proper divisors (18285955).

196661117 is a wasteful number, since it uses less digits than its factorization.

196661117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373219.

The product of its digits is 13608, while the sum is 38.

The square root of 196661117 is about 14023.5914444196. The cubic root of 196661117 is about 581.5309504396.

The spelling of 196661117 in words is "one hundred ninety-six million, six hundred sixty-one thousand, one hundred seventeen".