66650630 has 8 divisors (see below), whose sum is σ = 119971152. Its totient is φ = 26660248.

The previous prime is 66650629. The next prime is 66650681. The reversal of 66650630 is 3605666.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3332522 + ... + 3332541.

It is an arithmetic number, because the mean of its divisors is an integer number (14996394).

Almost surely, 2^66650630 is an apocalyptic number.

66650630 is a deficient number, since it is larger than the sum of its proper divisors (53320522).

66650630 is a wasteful number, since it uses less digits than its factorization.

66650630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6665070.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 66650630 is about 8163.9837089499. The cubic root of 66650630 is about 405.4476176822.

The spelling of 66650630 in words is "sixty-six million, six hundred fifty thousand, six hundred thirty".