66730310 has 8 divisors (see below), whose sum is σ = 120114576. Its totient is φ = 26692120.

The previous prime is 66730303. The next prime is 66730319. The reversal of 66730310 is 1303766.

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

It is a super-2 number, since 2×66730310² = 8905868545392200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66730310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66730319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3336506 + ... + 3336525.

It is an arithmetic number, because the mean of its divisors is an integer number (15014322).

Almost surely, 2^66730310 is an apocalyptic number.

66730310 is a deficient number, since it is larger than the sum of its proper divisors (53384266).

66730310 is a wasteful number, since it uses less digits than its factorization.

66730310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673038.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 66730310 is about 8168.8622218764. The cubic root of 66730310 is about 405.6091225367.

The spelling of 66730310 in words is "sixty-six million, seven hundred thirty thousand, three hundred ten".