66208942 has 8 divisors (see below), whose sum is σ = 99818136. Its totient is φ = 32936232.

The previous prime is 66208921. The next prime is 66208957. The reversal of 66208942 is 24980266.

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

It is a congruent 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, 83628 + ... + 84415.

It is an arithmetic number, because the mean of its divisors is an integer number (12477267).

Almost surely, 2^66208942 is an apocalyptic number.

66208942 is a deficient number, since it is larger than the sum of its proper divisors (33609194).

66208942 is a wasteful number, since it uses less digits than its factorization.

66208942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168242.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 66208942 is about 8136.8877342630. The cubic root of 66208942 is about 404.5500097837.

The spelling of 66208942 in words is "sixty-six million, two hundred eight thousand, nine hundred forty-two".