66974106 has 8 divisors (see below), whose sum is σ = 133948224. Its totient is φ = 22324700.

The previous prime is 66974099. The next prime is 66974119. The reversal of 66974106 is 60147966.

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

66974106 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5581170 + ... + 5581181.

It is an arithmetic number, because the mean of its divisors is an integer number (16743528).

Almost surely, 2^66974106 is an apocalyptic number.

66974106 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.

66974106 is a wasteful number, since it uses less digits than its factorization.

66974106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11162356.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 66974106 is about 8183.7708912212. The cubic root of 66974106 is about 406.1024800555.

The spelling of 66974106 in words is "sixty-six million, nine hundred seventy-four thousand, one hundred six".