66338452 has 6 divisors (see below), whose sum is σ = 116092298. Its totient is φ = 33169224.

The previous prime is 66338431. The next prime is 66338473. The reversal of 66338452 is 25483366.

It is an interprime number because it is at equal distance from previous prime (66338431) and next prime (66338473).

It can be written as a sum of positive squares in only one way, i.e., 54819216 + 11519236 = 7404^2 + 3394^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8292303 + ... + 8292310.

Almost surely, 2^66338452 is an apocalyptic number.

It is an amenable number.

66338452 is a deficient number, since it is larger than the sum of its proper divisors (49753846).

66338452 is a wasteful number, since it uses less digits than its factorization.

66338452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16584617 (or 16584615 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 66338452 is about 8144.8420488061. The cubic root of 66338452 is about 404.8136154007.

The spelling of 66338452 in words is "sixty-six million, three hundred thirty-eight thousand, four hundred fifty-two".