66106373 has 8 divisors (see below), whose sum is σ = 67925760. Its totient is φ = 64310400.

The previous prime is 66106363. The next prime is 66106433. The reversal of 66106373 is 37360166.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66106373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66106303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53 + ... + 11498.

It is an arithmetic number, because the mean of its divisors is an integer number (8490720).

Almost surely, 2^66106373 is an apocalyptic number.

It is an amenable number.

66106373 is a deficient number, since it is larger than the sum of its proper divisors (1819387).

66106373 is a wasteful number, since it uses less digits than its factorization.

66106373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11707.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 66106373 is about 8130.5825744531. The cubic root of 66106373 is about 404.3409960442.

The spelling of 66106373 in words is "sixty-six million, one hundred six thousand, three hundred seventy-three".