66305070 has 48 divisors (see below), whose sum is σ = 185657472. Its totient is φ = 16320960.

The previous prime is 66305069. The next prime is 66305081. The reversal of 66305070 is 7050366.

It is a super-3 number, since 3×66305070³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27166 + ... + 29505.

It is an arithmetic number, because the mean of its divisors is an integer number (3867864).

Almost surely, 2^66305070 is an apocalyptic number.

66305070 is an abundant number, since it is smaller than the sum of its proper divisors (119352402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66305070 is a wasteful number, since it uses less digits than its factorization.

66305070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56697 (or 56694 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 66305070 is about 8142.7925185406. The cubic root of 66305070 is about 404.7457022723.

The spelling of 66305070 in words is "sixty-six million, three hundred five thousand, seventy".