66241652 has 6 divisors (see below), whose sum is σ = 115922898. Its totient is φ = 33120824.

The previous prime is 66241631. The next prime is 66241687. The reversal of 66241652 is 25614266.

It can be written as a sum of positive squares in only one way, i.e., 54228496 + 12013156 = 7364^2 + 3466^2 .

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, 8280203 + ... + 8280210.

It is an arithmetic number, because the mean of its divisors is an integer number (19320483).

Almost surely, 2^66241652 is an apocalyptic number.

It is an amenable number.

66241652 is a deficient number, since it is larger than the sum of its proper divisors (49681246).

66241652 is a wasteful number, since it uses less digits than its factorization.

66241652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16560417 (or 16560415 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 66241652 is about 8138.8974683307. The cubic root of 66241652 is about 404.6166203846.

The spelling of 66241652 in words is "sixty-six million, two hundred forty-one thousand, six hundred fifty-two".