66196194 has 8 divisors (see below), whose sum is σ = 132392400. Its totient is φ = 22065396.

The previous prime is 66196187. The next prime is 66196213. The reversal of 66196194 is 49169166.

66196194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

66196194 is an admirable number.

It is a super-2 number, since 2×66196194² = 8763872200171272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5516344 + ... + 5516355.

It is an arithmetic number, because the mean of its divisors is an integer number (16549050).

Almost surely, 2^66196194 is an apocalyptic number.

66196194 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66196194 is a wasteful number, since it uses less digits than its factorization.

66196194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11032704.

The product of its digits is 69984, while the sum is 42.

The square root of 66196194 is about 8136.1043503633. The cubic root of 66196194 is about 404.5240438321.

The spelling of 66196194 in words is "sixty-six million, one hundred ninety-six thousand, one hundred ninety-four".